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      12-17-2012, 06:00 PM   #11
2totalled2months
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Drives: 2010 Toyota 4Runner 4x4
Join Date: Dec 2012
Location: Indian Trail, NC

Posts: 75
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Quote:
Originally Posted by HeelToe View Post
I had an Eisenmann on my e90 330i for 2 years and then replaced with the BMW Perf exhaust because I couldn't stand the drone when cruising. Obviously this comment doesn't apply to an n55 135. I can say though that my 135is with the BMW perf exhaust is unbelievable.
Im considering the BMW performance exhaust, I haven't heard any sound clips or hp gain numbers, did you notice a big difference, BMW website doesn't say too much and 1250 is a reasonable cost
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