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      09-06-2019, 11:21 AM   #15
Thunderguts
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Drives: 2009 128i Sport MT
Join Date: Jul 2018
Location: DFW

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Quote:
Originally Posted by xxatticus View Post
Are there any negatives to installing the 135i PE on the 128i? Any reduction in power or anything? Anyone got a link to the 135i PE for a decent price?
I haven't found any negatives, other than the minor pipe diameter difference. The 135i is slightly larger diameter so if anything, it would flow slightly better than the 128i PE and give you more top end power.
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