View Single Post
      05-21-2010, 04:59 PM   #18
GaryS
Colonel
37
Rep
2,084
Posts

Drives: 2009 135i 6MT
Join Date: Feb 2010
Location: Maryland

iTrader: (0)

Garage List
2009 135i  [6.50]
The last I heard, the intercooler by itself adds 5 hp, but it feels like more because it gives you better response and prevents the boost from dropping due to heat-soak. Then if you get the Stage 2 flash reinstalled, the check-box for intercooler installed will give you a stronger boost map.
Appreciate 0