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      09-15-2023, 12:03 PM   #2
spidertri
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Drives: 11 128i 6MT Sport
Join Date: Sep 2010
Location: Rock Hill, SC

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2011 BMW 128i  [0.00]
Yeah, you can definitely run a 135i axle back on the 128i. I've run both the N54 135i stock axleback and now running a Dinan 135i axleback.

The N54 was a subtle improvement in sound, N55 version is supposed to be slightly more aggressive. The Dinan is a well controlled louder, and I really enjoy it.

The inlet tube side on the 135i is slightly larger than the 128i. I was able to use an exhaust band clamp and slip the 128 pipe inside the 135's and then tighten it up.
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11 128i slicktop
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19 Alltrack S
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