98' Sierra 4.3L vortec flowmaster 40 series exhaust

[@eotsis1]

What does the butt dyno tell you? Any noticable performance improvement or mpg change?

[@thecoindigger]

I did notice a slight change in gas mileage. After I put a high flow Cat in a performance change was also noticeable.

[@jasonflatla66]

hey neighbour, you in ontario?

[@kylester1498]

What size pipe after the muffler?

[@Billy_Darley]

meanwhile back at the ranch...

[@MrKevinlynch1587]

Did you remove your cat converter?

[@alm4760]

not wise to remove cat on these trucks, some cases its been reported a drop in performance.

[@alm4760]

yes very true not recommended to remove cats , renew the cat for maximum flow.

[@thecoindigger]

I did not remove it as it does mess with the O2 sensors. After this video I installed a high flow cat. It made it louder, and noticeable performance change.

[@johnnyv.1178]

@@thecoindigger Was the flow master a 3 inch inlet? If not what is the exact muffler

[@lorenzgarcia1795]

@@thecoindigger did it have better performance or worst then stock??

[@betosgarage]

Is the flowmaster super 40 the same as flowmaster 40 series?

[@bensimiele6011]

ProjectPhroRegal no they are slightly different I believe one is a little louder than the other

[@tommyboygames]

No they’re different. 40 series is the original chambered muffler, super 40 is the newer and slightly quieter adaptation

[@GodSend99]

Where did you get your tail lights ??

[@chevyguy5541]

How much was everything did you do a cat delete ?????

[@thecoindigger]

Chevy Guy 55 I think it was 600$ installed from what I remember. No cat delete as it messes with the O2 sensors if you do.

[@chevyguy5541]

@@thecoindigger thanks man i got the same price with cat just gotta get a new cat first lol

[@KevinLSX619]

@@thecoindigger wtf $600? You got robbed.

[@tannerjohnson5368]

From the cab does this drone on the highway or is it tolerable?

[@thecoindigger]

Tanner Johnson definitely tolerable. Not overpowering, blends in with the wind and tire noise.

[@doble.s1922]

What is the excact name of it and where did u buy it

[@IsmaelRavenlock]

dude i want it

[@Bassin_withaustin]

I got true dual 10s dual piped and performance headers and its loud af on my v6 that I get pulled over too much

[@thugjug2905]

v6?

[@DaddySax]

Yes it's a V6

[@charlesasdf]

Yes

[@floridaman9825]

Sounds like a V8