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Old 05-26-2012, 05:58 PM   #42 (permalink)
MattP725
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Quote:
Originally Posted by Jordo! View Post
That's a really interesting idea -- I didn't think the resonators on an exhaust as restrictive at the core of a cat. If true, that's a good way to stay OEM and green, but pick up lost power. Would be neat to see a dyno comparison of the two set ups.
Resonators create no exhaust gas restrictions, cats do... HFCs paired with resonated or non-resonated exhausts will produce the same gains. Regular cats vs HFCs do change the restriction however. This has been tested by lots of different exhaust manufacturers.
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