Quote:
Originally Posted by allmotor_2000
All I can say is stock box with K&N ran 175.3 in the 1/2 mile... and 142.5mph in the 1/4. There is no battle, the war has been decided (at 27psi).
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Which is one of the the main reasons I have not swapped out my stock boxes for the aftermarket intake I have sitting in a box in my garage (left over from the M5).
BTW, do you have a P/N for the K&N filters you're running, por favor?
