full exhaust help
#1
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Car: 1990 IROC
Engine: 383 Trickflow HSR
Transmission: auto
full exhaust help
after plenty of research I've found that my stock exhaust sucks. (Dual cat 1990 camaro 5.7) so I'm looking for a performance replacement set up. Problem is... I can't seem to find the right mix and match setup. Every time I find a set of headers I like, I can't find the y pipe to match for dual cats. and I can't decide on what catback to go with as I'm more worried about performance than the cool sound. I've heard magnaflow has the best mixture of the two. Is that true? I consider myself mechanically inclined and I have a welder but I'm not a pro. Im trying to keep the cost below 1000$ and I don't want to mod my undercarriage to make it fit. Nor do i want to sacrifice ground clearance for long tube headers and a true dual. What if a installed a set of shorty headers, brought a muffler and hi flow cats to an exhaust shop and had them fab up the rest. is it reasonable to think I can do this for under a grand? Or would it be worth it to try and piece a system together in the garage? If so can anyone give suggestions on part numbers/setups for headers/dual cat y pipe/catback? Would it be worth it to switch to a single cat system? I found a flowtech header/single cat y pipe combo for 350$ but I hear dual cat systems have better performance.
Last edited by edixon24; 05-26-2015 at 08:15 PM. Reason: more research
#2
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Car: 89 Firebird
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Re: full exhaust help
Forget about the dual-cat system unless you are trying to keep your car factory stock. They have all sorts of hi-flow converters now much better than the old ones and you will only need one. I suggest hooker headers and matching y-pipe, a good hi-flow converter maybe a magnaflow, and Summit or Jegs 3in catback exhaust system. I cannot stress 3in enough.You should be able to do this for around a grand even if you have to have someone weld up the exhaust.
#3
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Re: full exhaust help
Using craigslist I made a system for a friend fairly cheap was about 400 for everything.
https://www.thirdgen.org/forums/exha...al-y-pipe.html
Hooker 2460 headers, dougs Y pipe D901 with 3" mod, universal highflow cat and magnaflow exhaust should work well and not cost too much.
https://www.thirdgen.org/forums/exha...ke-3-inch.html
Also leave flowtek headers where they belong in the trash
https://www.thirdgen.org/forums/exha...al-y-pipe.html
Hooker 2460 headers, dougs Y pipe D901 with 3" mod, universal highflow cat and magnaflow exhaust should work well and not cost too much.
https://www.thirdgen.org/forums/exha...ke-3-inch.html
Also leave flowtek headers where they belong in the trash
#4
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Car: 1990 IROC
Engine: 383 Trickflow HSR
Transmission: auto
Re: full exhaust help
Looks good. Might give that a try. What headers did you bolt that y pipe to?
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Car: 1990 IROC
Engine: 383 Trickflow HSR
Transmission: auto
Re: full exhaust help
Got a system coming. If I eleminate the AIR system and the smog pump am I going to have to mess with the ecm to make it run right?
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Car: 86 WS6 TransAm
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Re: full exhaust help
I got wrid of my air and didnt have to do any thing with the ECM. Dyno Don headers into 3inch pipe into a Borla. Also I have a high flow Random Technology cat.
Last edited by 426 Wedge; 06-02-2015 at 06:11 AM.
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