I really like rear exhausts and have heard this can be the case when it comes to power. Stock SPF rear exhausts are pretty restrictive, but so are their side pipes.
Actually the internal diameter of the sidepipes chokes down to 1 3/4 inch at one point.
So the rear exhaust may be better?
Now if I can squeeze some bigger pipes under there...........
Quote:
Originally Posted by dcdoug
Don't you lose about the same with side pipes anyway (assuming you aren't running straight pipes). I was under the impression that because under car exhaust allows for more efficient header design, that you can actually achieve more power with under car exhaust that side pipes.
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