Realistically speaking, without having to spend another 50 dollars for the dyno, how much HP and Torque will a 3 in test pipe replacement, from stock cat will it give me? I already have the turbo back 3" down pipe, and I am currently running 10psi on my 92 supra. I plan on keeping the stock exhaust, which in terms of condition is very good. So does anyone have some numbers?
HP and Torque increase from stock cat to 3in test pipe
- Thread starter carvener
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LOL...you are kidding right? I'll give you a hint: It's within the margin of error for a dyno 
With a stock CAT back exhaust, likely zero.
Another useless thread closed.
With a stock CAT back exhaust, likely zero.
Another useless thread closed.
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