add power/speed on 1994 BMW 325is

what would be the best parts to use for gaining power/speed? and if i put a new muffler on it what would be the best for bmws

by in East Canton, OH on May 31, 2010
1 answer
ANSWER by , June 07, 2010
Running highest octane fuel available and freeing up the intake and exhaust would be the best step Anything further might reduce the market value of your car and running values