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I have JB4 G5 ISO, BMS downpipes, Injen Intake, Berk Race axle back, now CXRacing FMIC and ER charge pipe. Not to sure about the power gains. it always feels more powerfull after i dont drive it for 2 weeks. i had my car Dyno'd with the intake, JB4 G4 and axleback. i was told downpipes and FMIC would do wonders so i'm going to go back to the same dyno in a little while and see what those 2 mods did as far as increase in power.
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2009 135i : BMS JB4 G5 ISO,CXRacing FMIC Kit,Injen Cold Air Intake,Evolution Raceworks Charge Pipe,Walboro Inline Fuel Pump, E85 BMS Backend Flash w/ 60% E85,BMS Meth injection (trunkmount),BMS dual meth nozzles,Spec stage 2+ clutch w/ steel SWFW,BMS Catless Downpipes,Berk Tech Race Axleback
Last edited by MuNkY6913; 07-08-2013 at 02:48 AM..
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