True Dual cat back Exhaust System for Non Turbo e90s
Dual mufflers option of dual or quad exhaust without modifying your storage bin, XPipe with 2nd cat bypass with midpipes and dual race resonators which provides nice sound without droning. Best system after customizing 5 different set up with mufflers, pipes diameter, ect and this offerred the best performance combined with berger tune and afe stage 2 intake. bolt on system with minor andoif any adjustments is needed wlil depend dual or single outlet.
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