Quote:
Originally Posted by Obioban
So...
AA with secondary cats removed and 93 octane
vs
Evolve with standard catted exhaust and 91 octane
Both make very similar power... and Evolve is crap?
I'll have what you're drinking!
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I guess you're not only on drugs, but you can't read -
Quote:
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no secondary cat & no resonator exhaust into 135i stock muffler
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