Prolly go with the Y pipes, sounds alot cleaner and deeper. Alot more aggressive if you ask me. True duals just sound extremely loud and will probably get annoying after a while
Damn...all 3 showing exhaust routing...and clips of the, idle sound, stationary sound, interior sound, AND takeoff sound....You hit this video out of the park man! great job! My buddies 4.3 v6 Silverado is about to get a 6.0 LS and has a stock y pipe going out to catless duals with small mufflers and sounds great for a v6 and rumbles good, but once we go v8 he wants it to sound a lot meaner, so now he for sure wants duals
I fixed those baffolds/resonator cut out screens on my 2021 Trail Boss with aluminum tape. Covered all 6...but a lil too much drone(but cold start super loud😏)...took off 2 and its perfect now!
I would have chosen a different y-pipe on the second truck. 2½" into dual 2¼" is not big enough. Stock pipe size is 3". Why did you neck it down to 2½"? I'd also choose a bigger dual in/dual out cat for the 3rd truck. I feel dual 2" is not enough flow and will restrict power. And that's with open pipe, not a restriction like a "high flow" cat. The first truck flows best of all of these options. . And it's the one you touched the least with a simple muffler delete.
The pipe size is smaller but I don’t think it would affect flow considering they took out the muffler and gave the exhaust gasses two separate slightly smaller pipes versus 1 slightly larger pipe. I think the having two pipes make it flow better
@@BraydenMayfield06 larger pipe increases in area exponentially as you increase the diameter. Dual 2" pipes would essentially be as tall as a single 4" if you stacked them up next to a single 4". Think of an 8 vs a 0. Dual 2" pipesvon end look like an 8 versus a single O as a 4" single pipe. 8O. Same height, but overall area is much smaller inside the 8. open pipe flows about 115cfm per square inch of area. Pi × r² = A 3" : 3.14 × 1.5² = 7.065in². Dual 2" : 3.14 × 1² = 3.14in² × 2 = 6.28in². 4" : 3.14 × 2² = 12.56in². 3" : 7.065in² × 115cfm/in² = 812.475cfm Dual 2" : 6.28in² × 115cfm/in² = 722.2cfm 4" : 12.56in² × 115cfm/in² = 1444.4cfm 1hp requires about 2.2cfm of flow in an efficient, near zero loss exhaust system. Single 3" outflows dual 2" by 90.275cfm, or just over 41hp. Single 4" exhaust supports about 657hp. Single 3" supports about 369hp. Dual 2" supports about 328hp. Dual 2" does not flow as much as single 4". It flows half of single 4". Quad 2", however, does flow the same as single 4". These 5.3L engines produce about 365hp on an engine dyno. Dual straight through 2" will restrict the power of the engine. Single 4", on the other hand, is too large for one of these engines and the exhaust will not have as much velocity to help with exhaust scavenging of the cylinder. This will cause a slight loss in lb/ft of torque below the peak torque rpm. A properly sized system is closer to single 3" for these engines. Not too small that it hurts flow and peak power.. and not too big that it hurts velocity and scavenging.
The Y pipe dual is the one for me. Would love to build around that without touching the 3rd cat. Currently just have a muffler delete and would love to add more character to it. The true duals sounds hollow imo
I wish that there wasn't so many emissions control in my area and I would do tru dual exhaust. And I was wondering guys, is there much difference between the H-pipe and the X-pipe and the Y-pipe? For a 88 Chevy 1/2 ton 350 V8 throttle body.
H pipes typically add some low end torque but don't affect top end power. They are cheap and relatively easy to install. X-pipes do the same as an H down low but help more on the top end as well. An efficient Y pipe is essentially the same as a one sided X pipe. It won't be as loud as a dual system. I prefer the efficiency and scavenging of a big single exhaust. But I prefer the sound of a true dual exhaust, with no crossover. I'm running a Diamond Eye Performance 4" single exhaust system on my 1990 Silverado K2500 with a 350. The exhaust was designed for a 6.5L turbodiesel but includes hangers to drop right under any of the gmt400 trucks. I'm using a Flowmaster 300400Y y pipe. Dual 3" in and single 4" out. I'm running 3" mandrel bent collector pipes from my headers to the inlet of the Y. The exhaust exits the stock location behind the passenger rear tire. Depending on the power level that you're running, I'd run single 3" with a straight through Magnaflow muffler and a high flow cat. Or straight pipe it with no muffler or cat. I've heard the stock y-pipe isn't overly efficient so maybe an upgrade is in order. A Flowmaster 214300Y or 250300Y would be a good replacement. I used about 7 feet of straight 3" pipe from the inlet side of the cat to the tailpipe jist behind the muffler and welded it to the stock tailpipe on my 90. I ran that for the first couple of years before upgrading the engine to 400+hp. Then I upgraded to the 4" exhaust right before adding a supercharger and another 250hp. Good luck with your old truck. Keep that thing on the road. I've got 3 gmt400s and I love them.
@@alancarter8573 headers don't actually add much power to these engines. They are so low powered from the factory and the exhaust manifolds actually aren't that bad. 190hp from 350 cubes is nothing to brag about. Gm was trying to meet emissions regulations with ancient computers and their solution was to just tune the engine to rev as low as possible. They figured.. less revolutions, less emissions. But I know where you're coming from. I have a set of headers on all 3 of mine. I really like the Flowtech afterburner headers. You can also get a matching flowtech y pipe that will mate up to the inlet of the stock cat and 3" single exhaust system. I've run hooker competition headers as well. They fit nice too. Holley owns Hooker and Flowtech. I've had good luck with Hedman as well. I would stay away from Pacesetter. The 2wd version of the flowtech afterburners is 49154 and the 4wd version is 49156. Add y to the end of the part number to get the appropriate y-pipe. Like I said, mufflerless 3" straight pipe for more noise, or a 3" straight through magnaflow for a bit quieter but just as much flow as straight pipe. If you have a 6" lifted 4x4 with a differential drop bracket, you'll have fitment issues with the front driveshaft. Nothing that can't be solved, but the collector will need to be reworked and then the y-pipe won't fit without modifications. The afterburners are a little different than the standard flowtech headers. They have 3 cylinders going to a single collector and then the put of sequence cylinder dumps into a larger collector. It's supposed to help with exhaust scavenging. Cylinders 4 and 7 directly follow another cylinder on the same bank. 4 directly follows 8 and 7 directly follows 5. This causes a big jump in cylinder pressure at the collector.. whereas the opposite collector has a big dead zone during the double fire on the opposite bank. For reference, the firing order is 18436572. Once both banks are linked with a y pipe, the pulses will equalize and should help scavenging and make better power. One thing I forgot to mention earlier, single exhaust tends to sound smoother and less lopey. It also sounds like you're running more rpm on the top end than a similar dual exhaust. True duals will sound like 2 separate 4 cylinder engines. One side fires, then the other. It will sound lopier like you have a more radical cam than you actually have. It can make a stock cam sound slightly rough. It won't sound like a drag car or anything, but more than stock. A y, x, or h pipe will slightly silence the exhaust over a true dual system. Not much, but very slight. The sound waves will bounce off each other and cancel themselves out. If you want maximum sound, true duals. If you want maximum efficiency and scavenging and power, at the slight expense of sound, a big single exhaust will be the best bet. On my 92 c1500, I am running a set of flowtech afterburners, afterburner y pipe, and a single 3"idx24" glasspack into a 4"idx30" glasspack into a 4" tailpipe. It has 4.5ft of straight through muffler so it's decently tame and mellow at idle but the 4" pipe gives it a deep tone. It gets pretty loud at wide open throttle. It's not droney or annoying to go on long drives. My 90 k2500 sounds completely different with single 4" exhaust. It has a mild roller cam and is 4" minimum throughout. When you rev it, it's very aggressive and extremely loud. You can hear the cam when I pull the idle down to 400rpms.. but to be fair, if it will still idle at 400rpms, it's a pretty mild cam. 5,800 at 9.5psi of boost sounds unreal.
@@alancarter8573 if you do anything, go with long tubes. Shortys don't help with scavenging much, and the manifolds are already decently efficient for the power level. But long tubes will give you room to grow in the future if you decide to upgrade the engine a little.
I know the gas tank is on the driver's side, but is it possible to run the exhaust behind the transmission cross member? I really hate the idea of the y-pipe adding heat to a transmission with notorious heat-related issues.
Hi. After I watched this video I have a question. I have a Silverado trail boss 2019 5.3 single cab GCC. I wanted to do a straight pipe. Will it affect my engine?
I got a 2021 Chevy Silverado 1500 that I want to do a true dual cat back straight pipe for it. And this guy I would love to do it with but idk where his shop is and I’m in Louisiana
@@exhaustaddicts I didn’t think you were going to reply but that’s awesome you did. I love your videos. If only I could make a trip up there to do an exhaust I definitely would. It’s hard finding shops down here that would do it
The red one 😍 sounds good!
Say no to crack. That muffler deleted silver truck has the best sound. Put a tip on that and you've got a nice unit.
The Y pipe sounds the best to me, but they are all badass!!
Prolly go with the Y pipes, sounds alot cleaner and deeper. Alot more aggressive if you ask me. True duals just sound extremely loud and will probably get annoying after a while
Just muffler delete. Cheap and sounds good.
Damn...all 3 showing exhaust routing...and clips of the, idle sound, stationary sound, interior sound, AND takeoff sound....You hit this video out of the park man! great job!
My buddies 4.3 v6 Silverado is about to get a 6.0 LS and has a stock y pipe going out to catless duals with small mufflers and sounds great for a v6 and rumbles good, but once we go v8 he wants it to sound a lot meaner, so now he for sure wants duals
Love how the red one sounds perfect I want my trk to sound like that..
I fixed those baffolds/resonator cut out screens on my 2021 Trail Boss with aluminum tape. Covered all 6...but a lil too much drone(but cold start super loud😏)...took off 2 and its perfect now!
Do you have a video to see how it sounds?
Do one with a true dual x-pipe
Red for the win !!
I would have chosen a different y-pipe on the second truck. 2½" into dual 2¼" is not big enough. Stock pipe size is 3". Why did you neck it down to 2½"?
I'd also choose a bigger dual in/dual out cat for the 3rd truck. I feel dual 2" is not enough flow and will restrict power. And that's with open pipe, not a restriction like a "high flow" cat.
The first truck flows best of all of these options. . And it's the one you touched the least with a simple muffler delete.
The pipe size is smaller but I don’t think it would affect flow considering they took out the muffler and gave the exhaust gasses two separate slightly smaller pipes versus 1 slightly larger pipe. I think the having two pipes make it flow better
So if the og pipe was 3 in and the aftermarket is 2” but there’s 2 pipes that gives the same amount of exhaust gasses 4” total to flow.
@@BraydenMayfield06 larger pipe increases in area exponentially as you increase the diameter. Dual 2" pipes would essentially be as tall as a single 4" if you stacked them up next to a single 4". Think of an 8 vs a 0. Dual 2" pipesvon end look like an 8 versus a single O as a 4" single pipe. 8O. Same height, but overall area is much smaller inside the 8.
open pipe flows about 115cfm per square inch of area.
Pi × r² = A
3" : 3.14 × 1.5² = 7.065in².
Dual 2" : 3.14 × 1² = 3.14in² × 2 = 6.28in².
4" : 3.14 × 2² = 12.56in².
3" : 7.065in² × 115cfm/in² = 812.475cfm
Dual 2" : 6.28in² × 115cfm/in² = 722.2cfm
4" : 12.56in² × 115cfm/in² = 1444.4cfm
1hp requires about 2.2cfm of flow in an efficient, near zero loss exhaust system. Single 3" outflows dual 2" by 90.275cfm, or just over 41hp.
Single 4" exhaust supports about 657hp. Single 3" supports about 369hp.
Dual 2" supports about 328hp.
Dual 2" does not flow as much as single 4". It flows half of single 4". Quad 2", however, does flow the same as single 4". These 5.3L engines produce about 365hp on an engine dyno. Dual straight through 2" will restrict the power of the engine. Single 4", on the other hand, is too large for one of these engines and the exhaust will not have as much velocity to help with exhaust scavenging of the cylinder. This will cause a slight loss in lb/ft of torque below the peak torque rpm. A properly sized system is closer to single 3" for these engines. Not too small that it hurts flow and peak power.. and not too big that it hurts velocity and scavenging.
The Y pipe dual is the one for me. Would love to build around that without touching the 3rd cat. Currently just have a muffler delete and would love to add more character to it. The true duals sounds hollow imo
I have the Y pipe dual on my 2016 gmc 1500 5.3 and it’s MEAN
I have the red one...should take a drive on down there.
The true dual with the x pipe is my favorite, but I can live with the muffler delete!
True duel sound nice asf
And the overall cost and labor is ???
When u cut the 3 cat does the engine light tern on
How much you charge for true duals
Which catalytic converter did you put on the red one ?
The "True Duals" is my pick. Still a little raspy. It needs a H-Pipe.
What happened to the o2 sensors
its a true dual. but its not really a straight pipe. because of the in and out dual cat
GOT AN Silverado 1500 LT 2017 tryna put true duel on it would it work??
how much all that cost?
Depends on what u get but probably 300 at least
@@Daimxn they use stainless steel. quoted at 750$ a guy said for true dual full cat back
Gas or diesel?
The true dualed one is my favorite 😍
How much is something like the y pipe dual cost in general 🤔 on the red 18 chevy
Few hundred
Both duals sound awesome great video
Why can’t you just delete the third cat ?
What are the name of the rims on the silver Chevy?
They look like moto metals
How much did it cost to do the red one?
Call us at 615-612-6244
That true dual muscle car type sound, you can't beat that. Best tone ever
I wish that there wasn't so many emissions control in my area and I would do tru dual exhaust. And I was wondering guys, is there much difference between the H-pipe and the X-pipe and the Y-pipe? For a 88 Chevy 1/2 ton 350 V8 throttle body.
H pipes typically add some low end torque but don't affect top end power. They are cheap and relatively easy to install.
X-pipes do the same as an H down low but help more on the top end as well.
An efficient Y pipe is essentially the same as a one sided X pipe. It won't be as loud as a dual system. I prefer the efficiency and scavenging of a big single exhaust. But I prefer the sound of a true dual exhaust, with no crossover.
I'm running a Diamond Eye Performance 4" single exhaust system on my 1990 Silverado K2500 with a 350. The exhaust was designed for a 6.5L turbodiesel but includes hangers to drop right under any of the gmt400 trucks. I'm using a Flowmaster 300400Y y pipe. Dual 3" in and single 4" out. I'm running 3" mandrel bent collector pipes from my headers to the inlet of the Y. The exhaust exits the stock location behind the passenger rear tire.
Depending on the power level that you're running, I'd run single 3" with a straight through Magnaflow muffler and a high flow cat. Or straight pipe it with no muffler or cat. I've heard the stock y-pipe isn't overly efficient so maybe an upgrade is in order. A Flowmaster 214300Y or 250300Y would be a good replacement. I used about 7 feet of straight 3" pipe from the inlet side of the cat to the tailpipe jist behind the muffler and welded it to the stock tailpipe on my 90. I ran that for the first couple of years before upgrading the engine to 400+hp. Then I upgraded to the 4" exhaust right before adding a supercharger and another 250hp.
Good luck with your old truck. Keep that thing on the road. I've got 3 gmt400s and I love them.
@@EricErnst I would like to do headers as well but not sure if I should do long headers or shorty's?
@@alancarter8573 headers don't actually add much power to these engines. They are so low powered from the factory and the exhaust manifolds actually aren't that bad. 190hp from 350 cubes is nothing to brag about. Gm was trying to meet emissions regulations with ancient computers and their solution was to just tune the engine to rev as low as possible. They figured.. less revolutions, less emissions. But I know where you're coming from. I have a set of headers on all 3 of mine. I really like the Flowtech afterburner headers. You can also get a matching flowtech y pipe that will mate up to the inlet of the stock cat and 3" single exhaust system. I've run hooker competition headers as well. They fit nice too. Holley owns Hooker and Flowtech. I've had good luck with Hedman as well. I would stay away from Pacesetter.
The 2wd version of the flowtech afterburners is 49154 and the 4wd version is 49156. Add y to the end of the part number to get the appropriate y-pipe. Like I said, mufflerless 3" straight pipe for more noise, or a 3" straight through magnaflow for a bit quieter but just as much flow as straight pipe.
If you have a 6" lifted 4x4 with a differential drop bracket, you'll have fitment issues with the front driveshaft. Nothing that can't be solved, but the collector will need to be reworked and then the y-pipe won't fit without modifications.
The afterburners are a little different than the standard flowtech headers. They have 3 cylinders going to a single collector and then the put of sequence cylinder dumps into a larger collector. It's supposed to help with exhaust scavenging.
Cylinders 4 and 7 directly follow another cylinder on the same bank. 4 directly follows 8 and 7 directly follows 5. This causes a big jump in cylinder pressure at the collector.. whereas the opposite collector has a big dead zone during the double fire on the opposite bank. For reference, the firing order is 18436572. Once both banks are linked with a y pipe, the pulses will equalize and should help scavenging and make better power.
One thing I forgot to mention earlier, single exhaust tends to sound smoother and less lopey. It also sounds like you're running more rpm on the top end than a similar dual exhaust.
True duals will sound like 2 separate 4 cylinder engines. One side fires, then the other. It will sound lopier like you have a more radical cam than you actually have. It can make a stock cam sound slightly rough. It won't sound like a drag car or anything, but more than stock.
A y, x, or h pipe will slightly silence the exhaust over a true dual system. Not much, but very slight. The sound waves will bounce off each other and cancel themselves out.
If you want maximum sound, true duals. If you want maximum efficiency and scavenging and power, at the slight expense of sound, a big single exhaust will be the best bet.
On my 92 c1500, I am running a set of flowtech afterburners, afterburner y pipe, and a single 3"idx24" glasspack into a 4"idx30" glasspack into a 4" tailpipe. It has 4.5ft of straight through muffler so it's decently tame and mellow at idle but the 4" pipe gives it a deep tone. It gets pretty loud at wide open throttle. It's not droney or annoying to go on long drives.
My 90 k2500 sounds completely different with single 4" exhaust. It has a mild roller cam and is 4" minimum throughout. When you rev it, it's very aggressive and extremely loud. You can hear the cam when I pull the idle down to 400rpms.. but to be fair, if it will still idle at 400rpms, it's a pretty mild cam. 5,800 at 9.5psi of boost sounds unreal.
@@alancarter8573 if you do anything, go with long tubes. Shortys don't help with scavenging much, and the manifolds are already decently efficient for the power level. But long tubes will give you room to grow in the future if you decide to upgrade the engine a little.
@@EricErnst cool thanks for the help and info.
Y pipe sounds cleaner and meaner 😂
I know the gas tank is on the driver's side, but is it possible to run the exhaust behind the transmission cross member? I really hate the idea of the y-pipe adding heat to a transmission with notorious heat-related issues.
Ware is the shop located
3560 Dickerson road Nashville TN 37207
Can I get your number to make an appointment
Hi. After I watched this video I have a question. I have a Silverado trail boss 2019 5.3 single cab GCC. I wanted to do a straight pipe. Will it affect my engine?
No it won’t
Where in TN are you located 🤘🏻
3560 Dickerson road Nashville TN 37207
just cut the cats as well would sound better.
TRUE duals 💯 , I'm coming for ya , one of these days in the future God willing .. AWESOME 😀 😀 work 👏👏 ..
Faith & Love
No cat delete ?? Man!!!
The one with the duel in duel out cat that’s not true duel … 🤷🏼♂️ has to be true “
Dual
the Red ♥️ one ☝️
I got a 2021 Chevy Silverado 1500 that I want to do a true dual cat back straight pipe for it. And this guy I would love to do it with but idk where his shop is and I’m in Louisiana
Nashville, TN
@@exhaustaddicts I didn’t think you were going to reply but that’s awesome you did. I love your videos. If only I could make a trip up there to do an exhaust I definitely would. It’s hard finding shops down here that would do it
#1 Weird sound.....sounded better on acceleration...
#2 Nice and deep
#3 Aggressive
My Fav is....#2
Great video but those new chevys are ugly as hell lol
When you cut off the flapper valve your going to be hating life when it goes into V4 mode, very annoying and sounds like s**t.
Most people do the afm and dod delete, so it stays in v8 all the time. That's why they don't care about the flap valve
@@richardbell5959 I'm about to order a Range Technology AFM/DFM Disabler on Amazon for $200. Is that what I need? I have a 2015 Silverado.
No muffler clamps,just weld it& burn off the galvanized coating & you'll be back in 5 years when all that garbage is rusted & dragging on the ground