Thread: TIR header installed-quiter exhaust!?
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Old 04-11-2008, 01:45 AM
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Quote:
Originally Posted by cavie187 View Post
So, this leads to my next question. Has anyone done a before and after header dyno? I curious if the header for some ODD REASON is more restrictive than the factory exhaust manifold.
I have this header as well, lots of proven dyno results (as well as the more obvious butt dyno results) showing this setup produces more power and is NOT more restrictive. The AJR forum has some dyno threads where they test out the header.

I have a similar experience, my car is only slightly louder with the entire exhuast system installed. I leave the silencer in to keep a low profile, I couldn't be happier with it.

Here is the thread with the sound clip
T1R Header & 50S Exhaust Video
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