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      11-07-2012, 02:47 PM   #38
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Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach

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Originally Posted by jdemetry View Post
OP's talking about passing SMOG tests and everyone is recommending getting rid of his cats. What am I missing?
No kidding people.

Without going with a catless set up, best bang for buck is R&P (higher numerical gearing) and a tune. Only a modest power increase with the tune, but the gearing change will allow for quicker acceleration in every gear. Coupled together (gearing + tune), you will feel a significant "seat of your pants" improvement.
Daily: 2016 BMW i8
Airstrip: 2015 Porsche 991 Turbo S / GIAC FBO Meth 68mm turbos
Track: 2015 Porsche 991 GT3
Utility: 2012 BMW e92 M3 DCT
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