should i change my EXHAUST
Thread Starter
12 Second Club
Joined: Sep 2005
Posts: 689
Likes: 0
From: kentucky
should i change my EXHAUST i have 98 m6 trans am with 3 inch exhaust and gutted cats to a flowmaster 80 series i like the soud but ive read sum bad things about flowmaster people calling them corkmasters lol .should i change the muffler for sumthing else or will it be fine.i plan on adding headers later on when i get my money saved..and will the flowmaster hurt my power please help
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by ls1chris
i have 98 m6 trans am with 3 inch exhaust and gutted cats to a flowmaster 80 series i like the soud but ive read sum bad things about flowmaster people calling them corkmasters lol .should i change the muffler for sumthing else or will it be fine.i plan on adding headers later on when i get my money saved..and will the flowmaster hurt my power please help
Personally I say if you're happy why change!
You may be able to get a bit more power out af a different exhuast, but what do you want from the car? If its just a normal every driver then 5-10HP is not really a big deal.
If you're after every single pony and money isn't an issue change it. But having said that, removing the air con and interior will make it quicker so why not do that too.....
It's all about knowing where to draw the line and say "I'm Happy".
i'd leave it if your happy. a couple of hp isn't worth is. does anybody actually have dyno sheets or back to back pulls with different exhaust systems to see if flowmaster is actually crap? i always here that it is crap...but now one has ever provided proof.
Originally Posted by BrandonDrecksage
i'd leave it if your happy. a couple of hp isn't worth is. does anybody actually have dyno sheets or back to back pulls with different exhaust systems to see if flowmaster is actually crap? i always here that it is crap...but now one has ever provided proof.
i have a flowmaster cat-back and an electric cut-out and i gained 10hp and 10tq everywhere just by opening the cutout. also i have kooks steeped headers, ory, underdrive pully, and a 224 cam. i dont know if that is the proof you want or if you want it compared to another cat-back. also i have seen people with magnaflow catbacks only gain like 1-2hp with a cut-out. i personly like the sound of the flowmaster but hate the power i loose through it so that i why i bought the electric cut-out.
Trending Topics
Originally Posted by Z28_Ninja
i have a flowmaster cat-back and an electric cut-out and i gained 10hp and 10tq everywhere just by opening the cutout. also i have kooks steeped headers, ory, underdrive pully, and a 224 cam. i dont know if that is the proof you want or if you want it compared to another cat-back. also i have seen people with magnaflow catbacks only gain like 1-2hp with a cut-out. i personly like the sound of the flowmaster but hate the power i loose through it so that i why i bought the electric cut-out.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo i had it dynoed same day, same tune, same parts, just one pull with cut-out closed (through flowmaster) which was 350rwhp and 345rwtq and then one pull with the cut-out open which was 360rwhp and 355rwtq.
was dynoed same day cause all the parts i mentioned where put on at the same time.
was dynoed same day cause all the parts i mentioned where put on at the same time.
Originally Posted by Z28_Ninja
i had it dynoed same day, same tune, same parts, just one pull with cut-out closed (through flowmaster) which was 350rwhp and 345rwtq and then one pull with the cut-out open which was 360rwhp and 355rwtq.
was dynoed same day cause all the parts i mentioned where put on at the same time.
was dynoed same day cause all the parts i mentioned where put on at the same time.
Originally Posted by taintedmeat
Interesting, must be why I ain't feel any difference when I switched to the Rumbler. I heard you can't really "feel" anything under 20 hp, whatever that's worth.
Originally Posted by Z28_Ninja
i just think that after a while you just get too used to the car and dont know the difference when you change things
There was a graph posted a few years ago with flow # for diff mufflers. If you cant see or understand the chambers as flow impeding i would not want you to work on my car. This should be obvious to you. If someone dont care then whatever but he asked if they are hurting his power and the answer is yes. If you cant tell by the design search out the graph.
Originally Posted by taintedmeat
Well I sure as hell hope I notice the difference when I put lt's on.
I really don't know about the but dyno difference with the LT's. For sure everyones car is different for the most part. I do seem to notice it pulling harder and quicker from 4,000 up. But it isn't the oh Sh*T difference I was expecting.
Frankly I was expecting the same difference feel I got from going from my 89 camaro with 305 to the LS1. That was wishful thinking though.
I kept the flowmaster and y pipe setup. Had the exhaust shop make a custom y with a flow master merge collector. It sure sounds mean!
12 Second Club
Joined: Jul 2006
Posts: 799
Likes: 0
From: Pittsburgh,PA
i ran my car completely stock with just a flowmaster cat back and did 13.6@105.... changed it and went to a loudmouth, got 13.5@106. if thats worth changin it then go for it. but if you're putting more stuff on the car, you might see more of a difference (as ban-ls1 said)
Originally Posted by taintedmeat
Well I sure as hell hope I notice the difference when I put lt's on.
I picked up almost 6/10's when I went from JBA shorties and stock y to Kook's 1 3/4 lt's and ORY along with a SSRA. The car had a lot more in it too, but my clutch master went out.