BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)


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      09-22-2015, 04:46 PM   #45
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Drives: 2009 BMW 135i Convertible
Join Date: Jun 2015
Location: Florida

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Originally Posted by Bob Z. View Post
I do not have any drone at any speed with the Race Back on my 2013 135i....I would not consider any other cat back based on the sound and cost.

By the way, with the help of Bryan at Berk we were able to rectify the minor issue of it hitting the cross brace in case others with convertibles have the same problem.
Do u only have the race axle back or do u have the midpipes as well?

I have a convertible as well and iam considering the race axle back but i am worried it will be too loud and annoying. How did u fix the problem with the exhaust rubbing on the cross brace?
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      09-23-2015, 02:31 PM   #46

Drives: 2011 135i DCT
Join Date: Sep 2014
Location: United States

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With my AR 4" catted DP, and Berk full race exhaust, the drone is only annoying to me while cruising at 80+ MPH. I also have rear seats removed so there is a bit more noise.
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