Quote:
Originally Posted by Nine Ball
I can't see how this test will show any meaningful results unless you get a better catback system than stock installed first.
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It has been demonstrated many times and is commonly accepted that most of the restriction in the factory system is in the cast exhaust manifolds and cats. This is where your potential power gains are.
There are little power improvements to be had after the cats. Cat backs are mostly about audible improvements. We have seen axle backs changed with 0 hp gains on the dyno.
Alfie