[s2kvee]

400hp legally in California? on a F30 N55, lol NOPE.. you might as well sell your 435i and buy a m3 / m4 if you're worried about legal issues..


an option to avoid catless DP due to pollution would be to use the AFE 400 cell high flow catted downpipe. it will pollute more than original DP but with a 400 cell. its a pretty restricted HFC..

if youre looking to push higher power, running a JB4 with about 3-4 gallons of E85 on map 5. you should get a small kick. Be sure to upgrade your Charge pipe as they are prone to break even on stock boost..

my current set up is Catless DP, ER Charge Pipe, VRSF Intercooler, AFE Momentum Intake, MPE Exhaust, running BM3 on Stage 2 as well as the occasional e30 mix.