Quote:
Originally Posted by SuperTom
Im pretty sure decatting has been proven on this cars to cause a loss or minimal gain of HP due to the distortion of air created.
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Lol no. PM rice_classic. For SCCA T4 they have to run the stock manifold but are allowed to decat it. They are making numbers comparable to most headers on the market.
Edit: you also don’t just punch the cat out. You cut that section out and replace it with a piece of tube. So what distortion?