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jturboawd jturboawd is offline
Senior Member
Posts: 660
Join Date: Apr 2014
Car: 135i
Default 01-15-2019, 10:53 AM

I’m running the speedtech kit at 600-650 daily. Been 6 months at least. 75k miles. I would go stand alone if it was possible but not sure I would want to be the first. Stand alone makes tuning so much more flexible.

I plan to build a n55 maybe later this year. Simple rods, gas ported and coated pistons, n54 cranks, etc.

2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7, Most importantly CF Roof!
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