02-26-2007, 07:28 AM
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#1 |
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12psi boost
Join Date: Aug 2006
Location: North Carolina
Posts: 361
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What exhaust would be better
right now im just looking to get my car legal, and i was wonder correct me if im wrong but the stock exhuast pipe is 2.5" but i was wondering what would be better a muffler with a 2.5" inlet and a 3" outlet or like a 3.5 or 4" outlet?
and what brands would be best performance wise the car is na
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Upgrades- 225/50/R16's Kumho ECSTA AST (KU25) 273 bucks with shipping Magnaflow exhaust NO KAT K&N Air Filter www.myspace.com/coreyjstevens http://vids.myspace.com/index.cfm?fu...oid=1536317037 <------ this one should work check out the accident one aswell ya i might be a "fat kid" but i sure can move fast!~ |
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02-26-2007, 08:59 AM
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#3 | |
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12psi boost
Join Date: Aug 2006
Location: North Carolina
Posts: 361
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Quote:
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Upgrades- 225/50/R16's Kumho ECSTA AST (KU25) 273 bucks with shipping Magnaflow exhaust NO KAT K&N Air Filter www.myspace.com/coreyjstevens http://vids.myspace.com/index.cfm?fu...oid=1536317037 <------ this one should work check out the accident one aswell ya i might be a "fat kid" but i sure can move fast!~ Last edited by supraman121; 02-26-2007 at 09:25 AM. |
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02-26-2007, 08:11 PM
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#4 |
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3" Exhaust
Join Date: Jul 2006
Location: Seattle, WA
Posts: 73
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Yea, Im not sure about a muffler adding a whole lot of performance. Also, I know the turbo car has a 2.5" exhaust, but I think the N/A might be smaller. He says 2.5" all the way back, so I'd think a muffler tip I would stay at 2.5" If you go any bigger, you might lose some torque. But hopefully nickleye or someone else will chime in and give their expertise.
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1987 Supra Turbo GReddy TT Open Element Filter (<---not sure what brand) YAY BOOST!!!!....finally... 
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02-26-2007, 08:32 PM
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#5 |
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3" Exhaust
Join Date: Mar 2006
Location: Michigan
Posts: 213
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its 2.5 inches with na and turbo stock with my na i used a powertech muffler i think they sound the best. i currently have one for my turbo. i bought a 3 in downpipe and had a muffler place put 3 in pipe after my test pipe to the muffler. i got both from cbwheels.com they are out of miami.
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02-26-2007, 09:27 PM
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#6 |
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3" Exhaust
Join Date: Feb 2007
Location: Syracuse, NY
Posts: 203
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so justin...you only have one cat on your car right now? is that legal? noones answering my other thread, and im getting the car in 2 days...i need to know :-X i was thinking about getting all cooleeze stuff (downpipe, and the cat back on suprasport) plus a high flow cat to put in the cat back. one high flow cat, im assuming thats legal in NY state...someone at advanced auto parts said it would be.
if the car is n/a...then id lean towards the smaller of the two mufflers, just because of torque in the lower bands being present with that kind of muffler. i dont think it would be a whole lot though...so its up to you.
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my car: 1987 brownish Toyota Supra Turbo, automatic 7MGTE engine with ~100k miles on it. |
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02-26-2007, 10:22 PM
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#7 |
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3" Exhaust
Join Date: Mar 2006
Location: Michigan
Posts: 213
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well sidewinder i have no cats on my car at all. i'm not worrying about my car being legal and having a cop look under my car to see. cuz in michigan i don't think they are smart enough to realize that there isn't a cat. but anyway i'm sure just one hi flow cat will be legal. i went the cheap way and i am happy with what i have. personally i don't see the purpose of buying a catback system when its like 500 bucks. total for me the downpipe was $100 and the test pipe was $50 or so and the 3in pipe after that was $70 and $50 for the muffler.
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02-26-2007, 11:32 PM
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#8 |
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12psi boost
Join Date: Apr 2006
Location: Georgia
Posts: 250
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i believe ive read somewhre that you can put a 3" exhaust on an n/a, but you dont want any larger than that or you start hurting your performance. and thinking back on what ive read about most other peopls cars, more people stick with a 2.5" rather than go bigger. but thats just on the n/a. on another note, i only have one cat on my car and it passes emission here in atlanta. i think as long as they look under your car and see a cat youll be fine.
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My cars: 85 Trans Am- Ehhh- Gone 83 Rx7- Much Better- Gone 86.5 Supra- Love- Not Gone |
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02-27-2007, 02:56 AM
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#9 |
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3" Exhaust
Join Date: Feb 2007
Location: Syracuse, NY
Posts: 203
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ok. yeah, thats what my friend said who works at advanced auto parts...since its so old they dont check emissions really, they jsut check for a cat. thats good in my case, i want free flowing =P
georgia and new york arent that different i think...altho NY is a little stricter. thanks for the info!
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my car: 1987 brownish Toyota Supra Turbo, automatic 7MGTE engine with ~100k miles on it. |
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02-27-2007, 05:16 AM
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#10 |
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12psi boost
Join Date: Jan 2007
Location: long beach, CA
Posts: 252
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i smogged my car with the stock exhuast and stock cat and it passed fine..buh now i use a 3inch pipe and a 3inch apexi muffer..still using the stock exhuast and downpipe...)yeah i nkow) waiting got two tie rod coming in and tryina fix some oil leak...and i live in california..the exhuast is actually pretty quiet too and i get no stare at all from cops just a glance once in awhile buh dats it
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88turbo targa-white original Pin Stripe custom intake-Tenzo filter.....Momo racing seats and steering wheel... apexi exhaust tip-custom 3" piping. Replaced with RSR GT II NGK plug and wires HID conversion head lights HKS Turbo Timer Type-1 (in black) Tial BOV BIC DDP |
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