Thread: catless downpipes with competition mufflers videos?
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      05-31-2019, 01:45 PM   #6
phan
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Drives: X5 35d, M5 SC'd, M6GC
Join Date: Jan 2017
Location: los angeles

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OP, just wire the flaps open. i don't have a video but i'm running catless DPs with stock mufflers/flaps open, and the sound difference is noticeable.
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