8.1 Swap Exhaust: Which muffler sounds better in this Silverado?
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- เผยแพร่เมื่อ 16 ต.ค. 2024
- This will be the last part of Stage One of the LS to 8.1 swap in UglyTruck, my 2000 Silverado 1500 2WD. She started out life as a regular old LS 5.3 and 4L60 drivetrain, and now it's an 8.1 big block attached to a 4L80 transmission, and is ready to hit the road. In this upload, I attach the stock manifolds to the 5.3 catalytic converters and mid pipe and then to my custom 4" stainless cat-back I made back when the truck still had the 5.3 under the hood. On a NBS V8 Silverado and Sierra, the LS and Big block share the same spacing on the mid-pipe which makes it easy to adapt the old exhaust to the new manifolds, all I had to do was weld on one flange.
After I drove the truck for a while, I did get a little bored with the original muffler I had (a 26" long Hushpower) so I had to swap it out for something a little more aggressive sounding. This is my favorite GMT800 truck I've owned, and soon, it'll have quite a bit more power. But thats a story for another day.
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So whats the consensus, does the old or new muffler sound better?
New one.
New one
Difference is small, but go with the new one.
The new muffler sounds better, I'd keep the new one until after the turbo install.
Definitely the new one but wonder if you would like it more with shorty headers if they were a direct replacement for the exhaust manifolds
I’ve always love the sound of the original 40 series Flowmaster
you cant go wrong there
I went with a 3" Hooker aero chamber on my full length exhaust turbo Colorado and love it! Highly recommended. I'm getting older and didn't want the teenage raspy loud flowmeter exhaust sound.
seen a lot of votes here for the aerochamber... a lot of people like em
I couldn’t tell a difference between the mufflers. Looking forward to watching you turbo ugly truck
me too! i'm excited to get rolling on that
I have a 2014 Sierra crew cab 4x4 with the 5.3, and I changed from a flowmaster 40 series to a spintech 9000 series muffler setup. The flowmaster seemed to get quiet as the rpms increased and there wasn't much for highway cruising sound. The spintech, which I found very few reviews on youtube itself, seemed to grab my attention the most. The 9000 series is their most aggressive sound they have, and I am more than pleased with the sound throughout the rpm range. It is aggressive when you hit the go pedal, yet still tame enough to carry on a conversation inside without any annoying drone, also carrying a pleasant cruising tone. Honestly, I think you would be more than pleased with this sound yourself, we are kinda close in age range, so our interest in exhaust sound is likely similar.
Liking the progress so far on the 8.1 build. I’m watching from the beginning. Great videos.
I ran the same flowmaster y pipe you were looking at. And I am using a single 4" diesel kit on my 1990 k2500 with a vortech supercharged 350. Cool.
I running without a muffler. Holy crap. She's LOUD. I have a 5" straight through muffler to act as an expansion chamber and quiet her down a little.. but only a little.
yeah, that sounds rowdy
Cut the cats off and you'll be begging to have the big muffler back lol
I'm going to save it, and the way the tail pipe was extended, all I have to do is make one cut and the big muffler will slide right back in. Plus, it has its own hangers already welded on, so a simple swap should the time come.
Nashville does or did have smog inspections so without cats it would not pass
You'll lose low end torque
@@brandynklosterbuer9351 only way you lose power is if you don't retune the vehicle. If you don't have the fuel to go with the extra air flow you end up losing power
It will do for now, since it’s not going to be on the road too long. See what you’re dealing with after your turbo install and go from there. That my advice. Can’t wait too see how it evolves either way!
yeah, I get too carried away seeking perfection in the short term, when in reality it will only be like this for a little while longer
This guy's production quality is almost too good. I swear he explains stuff better and is easier to understand than most education videos.
appreciated!
@@LawrenceTolman I just realised you're one of the guys on powernation. Just watched the full 65 c10 build video. Keep up the awesome work man.
Glad you’re back. Keep the content coming.
Thanks! Will do!
Wow LT I just watched all your UglyTruck videos and absolutely love it, the 8.1 has always intrigued me, the fact that it runs on LS electronics etc. The muffler isn’t your problem, those tiny downpipes and cats are what’s killing power/noise but I’m sure you knew that!
Richie Rich I appreciate the watch time! Yeah the cats do take a lot of sound away, but they’ll get tossed once the turbo arrives.
Lawrence LT Tolman yup figured as much. Interesting to see the dyno results now with the mew engine.
You should do the 8.1 intake mod. I’ve seen it on youtube a few times. You cut off the bottom of the intake manifold and cut out the insides to free up a lot of flow. Then weld the bottom back on.
I plan on doing it when the engine comes out. seems to help a lot
I'll be the dissenter. Not much difference between them, but I would lean towards preferring the old muffler. I don't like any "throatiness" or high pitch notes on a truck, really prefer smooth and deep, closer to a train engine.
I have a similar setup, Vortec 454 in a '98 Chevy. 3" pipes off each cylinder bank to a dual 3" inlet single 4" outlet Y pipe, then a single 4" Flowmaster 60 series. No cats. Very deep sound, really like it.
Definitely following your turbo build, super impressed!
Kinda hard to go wrong with the Magnaflow mufflers. They sound good and don't restrict much power. Better choice in my opinion. I like this project!
agreed! and thanks for watching
I'm picky about exhaust sound too. You can make your own muffler if you got the time. Making an adjustable one with a butterfly in it using a motor to control it or even just a spring. Using the "SWAG THEORY " of course. Thanks for your videos.
sounds like a fun homework project for sure
I had the same problem when I first did just a muffler swap to a magnaflow. I really couldn't tell the difference. Then I did a full exhaust build like I listed below and that DEFINETELY did the trick for sound and performance... btw, I'm only running a slightly modified 5.3 in my late 07 Silverado 1500 4x4.
I've ran magnaflow's for the last 7 vehicles....Love them. My wifes 2012 5.3 Tahoe has Long tubes/no cats and a 22" magnaflow...sounds great, Gonna do long tubes with a 14" magnaflow on my 2012 Silverado 3" single exhaust
Right on! I have run more magnaflows than any other brand myself. I think this is setup like five or so
I kinda dig your garage lighting! I did something similar as I wanted maximum lighting for low dollar. My 20 bulbs were all 6ft in both directions.
its great bang for the buck
It's showroom cool for the same price of one good light. Kind of helps with shadowing too!
I like the new set up sounds great I’m not into super loud so I love it! The first muffler was two bassi if that’s a word
thanks! I agree, the second sounds a little better.
Sure that your neighbors like it the way it was the first time. Transmission sure sounds strong.
you're probably right about the neighbors
You sound like you should be on horsepower tv - great vids by the way
I like the Truck Tech show the most... They have a cool host on there
Yeah but LT...those roads at the end don’t look too much like TN. Hopefully you aren’t leaving the show!
i have a 5.3 1500 with speed engineering's long tube headers and 3" x pipe with mufflers. im super happy with the way it sounds. its a little aggressive but i like it.
I think an X pipe would really help out. the sound on this for sure.
Either way.....the big block sounds great!
agreed!
I would stick a Borla XR1 in it, 5" round 15" body. Phenomenal sound.
I love your choice of 4 inch exhaust the only way to go perfect velocity I think big single outflow duels .
Damn I'd wish I had the truck for Christmas 😂😂
Dynomax ultraflo. Sounded great on a 360 mopar. Bet it would be awesome on a big block! Loving this truck!. Hello from Maine..your home state😁
another Mainer! well hi there, I do miss the state, its been a while since I've been back there.
Watching you Rev ugly truck at the end. New neighbors must love you. :)
lol... at least its not in the middle of the night
Moroso Spiral Flow!🤙🏻 Had one on my 5.3 Silverado and it sounded Amazing. Nice deep throaty tone that isn’t too loud, but not quiet either
I've been a Flowmaster fan since the 1990's. The 40 series some great.
Dude, I love your UglyTruck videos. I have an 8.1L Suburban that I'm turning into a SHTF bugout vehicle. The original exhaust is still pretty quiet but I'm debating on whether I should change the muffler for a more aggressive sound. Thanks for the videos.
thanks for watching! I suppose if you want a bugout truck, you may want it to be a little stealthier and quiet?
@@LawrenceTolman I was thinking the same thing but sometime I just want it to be a little more aggressive.
I'm late but i went with dual borla s-type exhausts with an x pipe and love it not loud at all on idle but has just the right roar to it when you get on the gas. 5 stars in my oppinion
Power nation should be doing stuff like this especially now that silverado 99-07 are blowing up. But besides that huge fan and glad you have your own channel man. I have a 04 RST thought i should throw that in there. 😁
I agree 100%. We actually just did a 01 GMC on the show (hasnt aired yet) in a 4x4 retro style
Second one sounds best. But look forward to what you have in store for it.
thanks! it should be fun
I like the first muffler, I thought it sounded better and is more of a sleeper. Which is better for surprising people.
it certainly had a sleeper status
On my ATK 5.3 I have Doug's shorty headers into the stock y, hollowed cats, then a flowmaster 70 series, and downspout before the axle.
I can't say enough how good it sounds! Very deep gurgle with the comp cam. Nice and throaty only when you get on it, pretty low otherwise which is what I wanted.
Glad to see the ugly truck!
flowmaster does know how to make a good sounding exhaust.
@@LawrenceTolman first one I've had and I'm pleased with it.
My last truck was a 6.0 that had dual straight pipes after the cats into split tips, both w\ a passenger side exit. Looked like the quad Corvette exhaust but all in front of the passenger rear tire.
My neighbors hated it, and I got pulled over probably 5 times for noise violations. Lol. Too loud for a daily, live and learn.
My 2500hd my 8.1 had the 6sp allison. I ran a 2 1/2" true dual system with stock cats, cherrybomb 28" body glass packs. Mellow at idle, roared to life when u go on it. Ended out the back with 2 1/2 to 4" bellow tips. I had flowmaster super 40 on it, chery bomb vorex muffler.... long glass packs gave best mellow idle soumd and amazing high rom tone
Ran cherry mobs on my 01 3500 8.1 but they burnt up and rusted out so replacing with stainless also blew out the flow masters too and thrush which are junk so going stainless steel racing mufflers 12 3 inch in 4 inch out
Your results are wayyy different from my experience with a diesel muffler. I picked up a Corsa for a 5.9l cummings, not sure if it's because I have a suburban with the 8.1, but man did it sound great and was loud. Ended up switching to a spintech 3" di/do and running the factory tailpipe.
thats interesting, I have always wanted a corsa muffler but they are a bit pricier...
@@LawrenceTolman after putting one in my 5.3 Tahoe, it was the best sounding exhaust I ever bought. Definitely worth every penny I spent on it. Only reason for the switch on the suburban was the drone was way too bad for a family vehicle. The spintech is perfect!
Heres a link to the cell phone video of the Corsa on the 8.1.
th-cam.com/video/bO6UJZnHiYs/w-d-xo.html
I went with the Speed Engineering catless dual axle dump on my 2002. I love it. My neighbors may not though. Lol
yeah, i imagine that might make some noise
I like the oval better but it was hard to tell. I went from a 3 inch dynatech back to stock 2.75 inch vibrant muffler from Amazon. Fully polished stainless and I couldnt believe how good it sounds. I know yours is a different size but the muffler was only 106.00 for fully polished.
"Probably not the last time I am going to change this setup" proceeds to weld it in.
thats what they make grinders for lol
I like the oval muffler but you can add an electric cut out in there somewhere so when you feel the need for some loudness
now you're talking
The new one is better. Thanks for the new video. Where did you get that welding table?
thanks! its a certi flat from weldtables.com. I picked it up a while back when they had a sale with free shipping, and it was pretty reasonable.
Not a huge difference in sound but definitely sounds better with the second especially with your foot in it. I wouldn't worry about it to much till the power adders come like you said it is all going to have to change again.
Totally agree!
I went a budget route on my 01 5.3 and got a jones exhaust flow pack 3 in/out. Its perfect for me
I ran a Jones Max Flow on a truck a few years back, was very impressed with the quality, espicially considering the price
Sweet you have your own channel
sure do! thanks for checking it out
Maybe time to try 4" straight? I'm not really a fan of straight pipe raspy sound but It's still definitely quiter than I think you were looking for. That's a lot of exhaust for non forced induction. Idk bud I'm the same picky about my exhaust sometimes it takes 3-4 changes to get it right. Good luck!
yeah, I'm still looking at other styles of muffler, but I wanna get the turbo on first
Today on Truck Tech!!! HAHAHA that's probably were the keep on trucking came from.
lol... force of habit maybe
@@LawrenceTolman are you still on the powerblock shows?
Also put a camshaft in it I would say 212-218 500-500 110 lsa it will be a tire burner headers will increase the sound small headers for rasp 13/4 17/8 for more bass or deep tone
a larger cam is certainly on the to-do list
Glad to see you're back are you planning on twin or single turbo or or compound ( i'm plan on putting one into a S10) great project👍
This id like to see
Just a big single is the plan
@@LawrenceTolman on3 turbo 107mm maybe ?
I like the big one because is not that loud, and no body nows that You have a big block under the hood. In others words that is the bigining of a nasty sleeper, i like to see it with the turbo under the hood. I think is going to be really fast in the 1/4 mile.
I like the project because is not the same that other people are doing.
Keep moving forward with the good job
I love the ugly truck.
Hello from Puerto Rico
thanks! that is exactly the reason I wanted to do an 8.1 swap is because they are out of the ordinary. thanks for watching! it's so cool to meet international viewers.
Great video Definitely love the new exhaust of your going to do a new on you should try a straight pipe that would be cool
thanks!
Super 10 from Flowmaster transformed my Yukon with a 6.0 - I’m like a teenager with a led foot pulling away when I get the opportunity 😜
Love you vids man keep it up 💯
Thanks! Will do!
Check out Texas Speed. That's where I got my stainless long tube headers and "offroad" Y pipe at. I've been running them for 4 years now with zero complaints. Definitely the best bang for your buck for stainless headers and exhaust... Then you just need to find a good tuner to delete your post cat O2 sensors. That way, you're not throwing a code for something you're not using anyways.
they make some good stuff
Love this swap bud you convinced me to start this swap my self on my 2500. Do they LS oxygen sensors work with the 8.1?
Hey LT, really enjoying the Ugly Truck build. I’m a subscriber as well as a powernation subscriber. I wanted ur opinion if u have a minute. i’ve inherited a 2006 Avalanche 2wd. Would you lower, level, or lift?? TIA!
thats a great question, and totally up to your preferences. Being a 2wd, my tendency would be to lower it a little, but maybe just drop the back like 2" to make it sit level. then, add some power!
@@LawrenceTolman I’m kinda with u on this. Being a teen in the 80’s, I first think of lowering. Lifting a 2wd doesn’t seem all that cool to me. I think I’m leaning towards leveling it. Likely some 20’s and some 32 in. tires. Thanks for ur input and keep up the good videos!
Hey LT, big fan here of you and power Nation. This truck reminds me of my truck 99 Sierra 4.8 4wd. I have a 3 inch thrush exhaust and everything else is stock. I'm not going crazy with upgrades until I can buy hp tuners. I'm very interested in diving into tuning my truck for my future mods. Do you have any tips for me? Ty LT!
so many different ways you could go, maybe long tubes and headers, or a little more involved with a turbo
Nice. I'm looking for something not too loud. Did either have a drone in the cab while cruising?
I like the way it sounds..
What part of the country did you move to? Awesome scenery out there!
just a few blocks to the west side of town
If you want a louder tone try a 2 chamber muffler. The straight through will get louder as the packing wears out. I have one on my Big block ugly truck of my own. My sons enjoy the sound. Overall the oval straight through sounds better!!!
I'll have to do an update in a couple months and see if the sound changes at all.
One thing to keep in mind is the second you put a turbo on it it’ll get even quieter. Just another thing to think about.
very true, but it probably wont have cats with the turbo, so that will help the volume go back a bit
About a year and a half ago i bought a cheap welder because i kept switching muflers on my car and truck; just as i had figured out which one i liked i threw im a 212/218 cam on the truck and i switched back to the restrictive 2 chamber because it would stall sometimes and the increase in back pressure helpedi because in all honesty wont be getting it re-tuned any time soon 😂.
I very much enjoy the series on this truck. But why did you go to 4:30 gear ?
for better acceleration. it had 3.42s before, so if i was going through the effort to re-gear, 3.73 wouldn't have made enough difference.
I would recommend going true dual and put a modified x pipe in somewhere. Just my opinion cool build so far though.
I do like how the X pipe makes a V8 sound
Keep on truckin!
lol... will do
Well.... I do like the sound of it now compared the the first muffler.... but I’m curious as to how the sound will change when you put the turbo on... besides turbo whistles lol
probably wont be able to hear the sound of the exhaust over me laughing with joy every time it spools up lol
Both sound good. As you said magnaflow has more bass. I do love the Flowmaster hush series. Can't wait for more... good luck.
More to come!
Interestingly, back in the day, on my friend's old 87 Mustang, he (like everyone) had Flowmasters. We always thought that when he floored it, it got *quieter* than when he was part throttle.Maybe it's a Flowmaster thing.....?
hard to say, but I have heard what you are talking about.
@@LawrenceTolman That being said, it was only noticed from inside the car. We even have video... er.... the giant full size 1990 VHS camcorder video... lol.
Me personally I like quiet as long as it flows good
a 4" hushpower fits the bill for sure
@@LawrenceTolman Is it straight thru like other muffler or?
hollow out the cats and theres a spacer you can put on the O2 sensors that resembles an anti-fouler like you would use on a spark plug. no tune necessary because all it does is move the sensor out of the exhaust flow, while still keeping the sensor in a place where it will still get enough heat to send a good signal. I've seen them used on my stepfather's, no cat, ls3 camaro and it didnt even trip the check engine light.
thats a good way to get the extra sound and stay in "compliance"
@@LawrenceTolman would be interesting to see the difference between both mufflers again but without the cat taking the chunk it demands
That magnaflow will get louder over time, i have one in my truck. It’s right in the edge of perfect and not loud enough. It has me torn between wanting louder and want to be more adult and keep it lol
I can hear my dad now... "make it quieter" he'd say.
Are you going to hind the turbos under the bed , ultimate sleeper. Love the build want to put 8.1 in my 02 single cab shortwide . Inspiring
I'll be honest, I dont really love remote mounted turbos. They are a lot easier to install and have a stealthy look, but I prefer to mount em up front in the engine bay. Its gonna take some fab work, but I think I've got a sold plan
@@LawrenceTolman This is what I'm waiting to see. I'm sure the rest of the 8.1l crowd wants to see too!
I just put a cherry bomb m80 muffler on my 95 suburban 454. sounds really good. its loud but not too loud.
I'm old school I personally like a two chamber flowmaster. But on ugly I like the Hush flowmaster
I did love the sound of the Hushpower, I just wish it couldve been a lot louder.
I like the new muffler better, I love Magna flow!!
it does have a better sound I'll admit
Hey LT Great videos. I love your shows on Horse power TV as well. I did not know that you are doing your own thing as well. I wanted to bring some thing to your attention that most of the guys like me who have very limited knowledge on add or building horsepower into their own rides and that is where do I start. Now I believe that i have a good platform to build on and that is a 2012 GMC sierra. It has a 5.3L V8 with a cold air intake and cat back exhaust I have also bought a tuning system. The next thing I would like to get done is adding a better cam and heads but i have know idea where to start. So I was wondering if in the future you could take on that role of being me and walk us through our options of what to do next. if you need more info on exactly what i have engine wise I can say that the 8th character in my vin is a zero.
thats not a bad idea actually. it would be cool to show a comprehensive guideline to picking out what modifications will do what, and where to start if you are at square one...
Sounds better but still just missing that certain something like it stands out or grabs your attention to where it stands out from the rest. Idk if that makes sense
I cant wait to hear it with the turbo in place
new sounds just right to me, any chance you can get uglytruck on a scale? i'm curious to what a big block 1500 comes in at(and f/r bias)
I haven't yet, but it would be a good idea. I'm sure its nose heavy with that boat anchor up front...
1st set up sounds good to me.
i have an 8.1 in my yukon 2500 i cant wait to see what you do to yours and what i can do to mine
lots of good aftermarket parts out there for sure... tons of performance potential
New one sounds a bit better. Try an Aerochamber muffler from Hooker Headers. I run two on my 05 Denali and they sound great.
thats another one I have heard a ton about but never tried.
If the truck sounds great outside and doesn't sound too loud inside - YOU WIN leave it alone!
I wonder what the difference would be if you used 2 mufflers instead of 1? I’ll be putting duals on my 8.1 and I’m trying to find a good muffler that will give that deep bass tone but not be overly aggressive
Must say i prefer the newer muffler sound.........but could be louder
love the build
yeah, it always could be a touch louder for sure
I have a 5.3 GMC Envoy, had a Delta flow 50 dual-out put on, but the guy used tiny 2" pipes for the over axle pipes. Is that too small? It sounds like air when I'm at high RPM's
The factory 5.3 setup is dual 2.5" into a single 3" tail pipe, so the 2" is a bit smaller than that, bit realistically you'll see no measurable (noticeable) difference switching to larger exhaust.
Check out sweet thunder exaust out of Michigan. Might give you the sounds you want
Ill have to check em out
Magnaflow round body my favorite.
excellent choice
Been wondering what the sound difference is between the oval body and the round body.
The new one sounds better, I have a Magnaflow 3" bullet style muffler on my 5.7 Hemi, sounds wicked
they do make a good product
I’m a big fan of dynomax mufflers. Run a 4” bullet muffler and see what you think.
Ive seen a lot of people like the Dynomax
Do you not work for power nation anymore?
You could probably even run a 2.5 duals into a single 3. There was another show that did something regarding that. For the life of me. Something about some old men in an engine room. Masters of building or something... Hermmm.
lol... I know the show you refer to, and I did see their episode some time ago about exhaust tube size, and that's why I don't feel so bad about running the 2.5 intermediate pipes and cats for now
@@LawrenceTolman if I get this I'll be doing the full long tube dual 3 into a muffler and 3 out. I'm only shooting for about 450 wheel with dart heads a b203 cam and the ported intake. Though a friend of mine wants to shoot a 200 shot of nitrous. I feel it's one of the simplest ways of getting to 700 wheel if those pistons will hold.
Havent watched the video yet but i had a 2002 2500hd 2wd zf 6 speed with the 8.1 and it sounded great with a spintech big block series i think it was a 9000
i've got a few votes for Spintech, I haven't tried em ever but I am interested
@@LawrenceTolman
If you get one i promise you will not be disappointed.
LT toss the 4” exhaust, 3” is more than enough for the 8.1L in stock or modified form. Keep the ignore the emissions haters cats are not an issue and they’ll keep your tunes in check by giving you realizable O2 numbers for tuning and troubleshooting if an engine issue rises. The best sound will likely be a dual 2-1/2” exhaust system X-Pipe with cats is best, if it’s not 2-1/2” summit sells any size cats up to 5” and you can weld up the pipes for a (Y), (H) or (X) configuration. The larger you go in exhaust the quieter it will be especially with mufflers!!!
Smaller would be simpler, but for what is coming next, the single 4" is gonna be just right.
I like the new one. Go Gators!
The new ovals sound better, definitely
I agree
LT, dunno who you talk to but if your channel is marked for kids we can't turn on notifications. enjoyed the video and would like to get notified when you post...
huh, I just checked and its set as "I never upload content for kids" did you see something that said otherwise?
@@LawrenceTolman the bell is crossed out and if you click it it gives the message that notifications are unavailable for content meant for kids..
20" Muffler has better sound. I think you should go with one of the Raven Mufflers.
ive actually never heard of raven, I'll have to look into em
I thought u looked familiar man....when are you doing the turbo id like to see how u do it i have a 8.1 in my 04 crew cab....well it's not a 8.1 anymore its now a 8.8...544 and would love to push some boost to it...
did you use Raylar parts? been thinking about giving them a call for some pistons and rods
@@LawrenceTolman 544 has the Dart 4.500 crank, Calles Compstar rods 6.700 in length and RaceTec pistons all built into a new PSI 8.8 block. Raylar heads with stock valves and a Crane cam for the 8.1. with a modded intake with a 90mm Tb.