3" Test Pipe

cars4me89 · 07-27-2006, 01:14 AM

Hey, I just purchased a 3" inch test pipe for my 87 non-turbo and was wondering.. if the rest of my exhaust isn't a full 3".. will it affect the flow of the exhaust system if the test pipe is 3 inches and the rest is say.. 2.5? Thanks

Supra2NR · 07-27-2006, 01:57 AM

it probably be still the same cuz the restrictions is still there,

you only got space on the testpipe, then after that air is still choked by the rest of the exhaust pipe

the same can be said for pple that buy 3" exhaust muff's and still has stock exhaust piping

but the testpipe is a good start for your car,
dont forget EMISSIONS, they're somewhat tight in here

where in illinois do you stay at?

cars4me89 · 07-27-2006, 03:26 AM

shaumburg area.. but if they come for emmisions i can just put the cat back in right? and on a non-turbo dont you need some kind of backpressure for the engine to run? a full 3 inch exaust would be a bad idea someone i work with told me. what do you think?

07-27-2006, 01:14 AM	#1
cars4me89 3" Exhaust Join Date: Jun 2006 Location: Phoenix, AZ Posts: 115	3" Test Pipe Hey, I just purchased a 3" inch test pipe for my 87 non-turbo and was wondering.. if the rest of my exhaust isn't a full 3".. will it affect the flow of the exhaust system if the test pipe is 3 inches and the rest is say.. 2.5? Thanks

07-27-2006, 01:57 AM	#2
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	it probably be still the same cuz the restrictions is still there, you only got space on the testpipe, then after that air is still choked by the rest of the exhaust pipe the same can be said for pple that buy 3" exhaust muff's and still has stock exhaust piping but the testpipe is a good start for your car, dont forget EMISSIONS, they're somewhat tight in here where in illinois do you stay at? __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

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07-27-2006, 03:26 AM	#3
cars4me89 3" Exhaust Join Date: Jun 2006 Location: Phoenix, AZ Posts: 115	shaumburg area.. but if they come for emmisions i can just put the cat back in right? and on a non-turbo dont you need some kind of backpressure for the engine to run? a full 3 inch exaust would be a bad idea someone i work with told me. what do you think?