Quote:
Originally Posted by PLife
Great thread! So my takeaways are: secondary cat delete (right after downpipe flanges) biggest bang for buck in volume. First resonator (closest to engine) is straight through piping with baffles and expansion chamber, little volume benefit removing. Second resonator (furthest from engine) is more complex and is where cylinder bank mixing occurs (are we 100% on this, anyone have pics?). If these takeaways are correct, i would defo do secondary cat delete since they are unmonitored (did this on my aston with the amg ttv8, results were legendary) and the first resonaotor. My experience with secondary cat deletes has been really really good. I would expect zero point zero drone with secondary cat n first resonator delete on the G8x
This plus charcoal filter removal and bmc could be the move...
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I'll have to double check the resonators when I get home but I do believe you are correct