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Installed Cobb AP3 on my N55 2011 135i with no bolt ons. I run with "stage 1 agressive" map and sometimes "stage 1 agressive FMIC" map when weather is close to frezzing weather. REally happy with results.
Now considering FMIC and DP, but from this thread, it seems as if the more expensive catted DP is not worth it, ie: will not make much power gains, and will eventually throw codes, if Cobb flash is removed when car is brought in for warranty repairs.
I might only do FMIC for next spring when lapping season is back over here in Quebec, Canada.
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2011 X3 35i with M pack + 2011 135i w/6SPMT | 255 square tire setup | Quaife 3.46 LSD | Diff lock down bracket | Bilstein B8+Swift SpecR springs+H&R FSB | CDV delete | BMS Oil Tstat bypass | ER FMIC & CP | N54Tuning DP | GC Street Camber Plates | M3 FCA +guide rods+RSFB's+Tranny mounts | Manzo toe arms | Cobb Stg2 agressive tune | Hawk DTC70 brake pads | RB SS brake pistons | Goodridge SS brake lines | Custom brake cooling ducts
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