Quote:
Originally Posted by Dave07997S
There really is no restriction with the OEM muffler..you are lucky to see 2-3rwhp difference..in fact Akrapovic only claims 2-3rwhp for just the rear section, and that can be statistical noise from the dyno.
Dave
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Gintani rear section has been proven to make power; I can't find the graph either but so does Super Sprint (agreed it's marginal, but its' def there)