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Originally Posted by HADI-ZR1
i said before month ago in CF , i post thread saying that ZR1 will embarrass 06z06, but all get angry and hate me  .
i know what Zr1 and LT5 is capable of !
listen, why dont you try open headers and see the gain, and ET after that.
i want someone to do that and see what our Zr do in track!  |
Actually, I have done that. After I ran the car with headers, no cats, 3" X pipe, and B&B 3" exhaust with no mufflers, I pulled the exhaust off and left open headers. The result, a reduction in trap speed, (therefore power).
I think it's because the ZR1 headers are relatively short, and also because I think the X pipe is really effective at increasing power.
The stock motor car seemed to run best with headers, no cats, X pipe and 3" exhaust pipes, no mufflers.
And a bonus, the sound was enough to scare the sh*t out of the guys I was running against.
