Quote:
Originally Posted by lclevert
I just got the 128i so I'm new here. Actually, its the wife's car and she doesn't really want it all mod-ed up. I'm thinking about an exhaust if that will yield a little more hp or gas mileage.
Has anyone done some before and after tests to see real world hp or fuel mileage gains?
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Skip,
The exhaust note is fairly aggressive which she might not like. Without also doing an intake I doubt there will be any hp gains and I expect my MPG to drop for a while since I am driving the car more aggressively to hear the sound.