Ok and then just to straighten things out... The BMW performance exhaust is cat-back, so that means it eliminates the resonator and keeps the cats (two sets)? Would the riss racing exhaust eliminate the resonator and secondary cats? Thanks
Tim
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2007 E92 328i 6MT - Space Gray - Saddle Brown - Premium - Sports
Mods - 2500k Nokya Fogs, Jlevisw License Plate Bulbs, ZHP Shift Knob, CDV Mod...
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