Intercooler and charge piping are the same. Intake plumbing feeding into the turbo inlets are the same. Lid and airbox are the same. They just bumped the boost about 2 psi, and added overboost to the DME profile. If I spent a lot of time on the track then I would get a 1M, but I mainly DD mine, so I opted for the more economical 135i instead of waiting for the 1M. And I am one of the very few that aren't crazy about the styling. The front is okay, but I hate the rear.
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(FBO) Cobb Stage 2+, AR Downpipes, Injen DCI, AA (Sport) FMIC, ER Chargepipe/Synapse BOV, Carbon fiber bits and Breyton GTS-R Wheels.
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