does a test pipe really help? I heard something about back pressure. I just put it on and it feals like a got more midrange power. might just be wishful thinking?

 

SOme say it helps out others say that it is really not worth it. However if you are going FI then I do believe that it would help. I am looking at getting one myself. Does your test pipe have both O2 bungs on it and do you get a CEL? Also how much was it and where did you get it from? TIA

 

your straight pipe will do a lot for the top end, especially on the freeway. it's not a very "feel it in your ***" mod, but the moment u put your stock cat back on, you can tell it's gone. test pipes get just be careful, cuz it is illegal.

 

I've got one on my car, definately feel a small loss in the low end, but definately makes up for it in the high end, just a mad rush from 5-8K. Pretty Loud too

 

how loud??

my Cat back is already 105 db
just wondering if i got the test pipe installed how loud would it be?

 

my friend and i made a custom test pipe...car responds better, has a slight deeper throaty sound, and its very cheap and inexpensive..only bad side is you could smell your fumes especially if your runnin rich!

 

I got it from testpipe.com with both o2 sensor holes for $35. The cel came on a couple hours after the install. Anybody khow how to turn it off?

 

Try resetting the ECU, its a short term fix usually though.