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      12-16-2010, 07:58 PM   #233
mineo77
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Drives: 2010 135i,1989 PRO3,2001 530i
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Location: Portland,OR

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2010 135i coupe  [7.56]
Quote:
Originally Posted by BMW86 View Post
Is there any particular reason you went with Macht Schnell catless instead of the AR catless? Also, what are your thoughts on the AR Resonated catless? Do you think the resonated version will sacrifice some of the horsepower gains? they have said it wouldn't but I'm skeptical as there aren't many people running the resonated version.
Honestly there was no reason, just swapped with another forum member. But after install I can tell you that the Macht Schnell is a much better fit. This could be that AR included cats and their catless are a better fit, but there is some fudge factor involved and the MS slide in like OEM.

Not sure about the resonated versions.
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