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Muffler delete
In case anyone was on the fence about an exhaust, or something to make their X1 sound better. I recommend a muffler delete. Kept the factory dual tipped exhaust and nixed the muffler. The single best, inexpensive mod that you can do. (Completely in my own opinion of course) and it only took an hour to get done. No drone, no codes, just a nice throaty exhaust note, and an even better idle.
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