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PM Sent to Z4MCJJ
Ocha- I should also ask about my section 1. I plan to keep the stock secondary cats in to keep volume down and make my emissions better. How much power am I leaving on the table by not deleting my secondary cats do you think?
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2007 M Coupe w/NAV/Premium/Extended Leather, Clearbra, DICE, 4.10 BMW Motorsport Polished LSD, Active Autowerke Gen IV Headers, Supersprint Race Exhaust and X-Pipe, ESS Tuned DME, KWV3 Coilovers, Volk RE30, OEM Strut Tower Brace, Short Antenna, JL AMP, JL 10W7, Valentine V1.
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