Quote:
Originally Posted by Meanmyz
From the SW thread... Paul I guess I was asking because I was considering the pros and cons of doing this myself (headers, cats, and stock resonator and mufflers).
So again the question to anybody will to chime in: If Marc H lists 5 HP as the difference between the second design stock exhaust vs. a freer flowing exhaust, does this difference widen as you modify the car for more power, such as 500HP?
...with the answer leading to "yes it only makes sense to also add a free flow exhaust because you are only mitigating the effects of some of your mods" or "no, there won't be a noticeable difference".
|
Conventional wisdom is to go to 3" exhaust once above 450 hp. To answer your question - yes. Difference will widen. Higher hp means more exhaust volume.