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      07-31-2017, 01:00 PM   #10
asbrr
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Drives: 2014 335ix M-Sport
Join Date: May 2015
Location: Toronto

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Quote:
Originally Posted by Suhb View Post
I took the headers off my car recently. Had I kept them, I was going to replace the secondary cats for AR20 resonators. That would deal with the rasp.

The 135i exhaust, with all its baffles, does a good job of making it daily-able by cancelling most of the drone around 2-3k, but it still screamed above 4k.

Of course, aside from the daily issue, PE exhaust + AA header sound was nothing short of holy. My MPG's tanked for the next 18 months cause I had a lead foot for most of my driving.

Also, self plug. AA headers FS
Wow - you removed them? Why not look at a quieter muffler and keep them? Unless you removed due to emission reasons etc.
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