Quote:
Originally Posted by steve99
The stock overpipe is a couple of millimeters smaller than the header exit pipe.
The stock front pipe with cat is slightly restrictive.
If your after every last hp swap them out but gains fairly mild and the stock front pipe/cat keeps noise/rasp down well.
but the majority of benifit is gained from fitting a catless header by itself
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Thanks for this info.
So If I'm getting a full cat exhaust system, I can run a Header that doesn't have a cat on it and still be okay correct?