I don't know if you guys get this post alot, so if you do I am sorry. But what is the best performing exaust system? Headers, cat, and cat back system? I don't want it to be to loud, and I don't care how it sounds, just as long as it doesn't sound bad. I mainly just want to make my car faster. Thanks

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91 Camaro RS

Red V8 coupe,
Ground effects,
Stingray "intake" on Hood,
Alum. Rims,
Sony Deck,
Rockford Fosgate punch 400 amp,
Two Rockford Fosgate 12 inch subs,
Tinted windows,
White face gauges,
GTR Carbon Fiber Rear Wing
Working on more mods for speed.

"Speed kills, wanna live forever? Drive a Ford"

 

Hooker Super comp longtubes, mufflex y-pipe and mufflex 4" with single tip and race flowmaster.

That's what I've got. Over 420 RWHP with 383 and Mini-ram, T-56 and 12 bolt

 

it totaly depends on the combo you are running. for a 305TBI/TPI I would say, SLP1 -5/8" headers with a good 3" exaust like Borla or SLP, for a mild 350 it would be 1-3/4" SLPs with the same catback, for a hot 350 or bigger it would be 1-3/4" SLPs and a 3"+ single exaust system. for over 450HP it would probably be long tubes and a 4" system

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

I have the 305 right now, but I am thinking about updating to a higher horsepower engine in a while, so I want to modifiy my car so that it will be ready when I put it in. So it wouldn't hurt performance right now if I put in a bigger exaust system in right now with the 305 would it? Becuase if I put in the exaust for the 305 right now, I would have to buy a new exaust when I put the bigger engine in.

 

I wish I would have gotten the SLP 1-3/4". there is a guy around here with a 305 TBI and has no problems with them. He was gonna get a 383 in a few months or something.

 

Thank you Tas! That's what I've been looking to hear. How's his low-end torque?