Quote:
Originally Posted by KB2
pretty curious about this....i just always hear 3 inch exhaust is mainly for boosted cars,and bad for NA cars..
looks freakin awesome however. sound clips?
|
Yes its apples and oranges, but high horsepower/high compression NA Honda 4cyls such as a K20a or a b18c5 make great gains with 3" exhausts vs. 2.5" and we're talking about 1.8 and 2.0 engines.
NA applications are always able to make better power with more flow in, more flow out, and more RPM.
Any perceived "loss" of power on the low end isn't really relevant. If I was doing a serious NA setup, shorter gearing would be a high priority anyway.