View Single Post
      10-24-2017, 02:21 PM   #12
alohasurftoad
Brigadier General
3132
Rep
4,380
Posts

Drives: 440i gran coupe w/mppsk
Join Date: Apr 2015
Location: hawaii

iTrader: (0)

the n20 stock airbox already flows well, so gains are minimal.

for performance, the best bang for your buck is a stage1 piggy back or flash tune.

an intake along with fmic, dp, exhaust and stage2 piggy back(w/code removal) or flash tune is where there is more of a benefit.
Appreciate 0