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      07-01-2013, 02:38 PM   #11
First Lieutenant
hetzle's Avatar

Drives: E90 335i
Join Date: Dec 2011
Location: Los Altos, California

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Originally Posted by divisionbell77 View Post
It shouldn't, but it will.
Take it off and put the stock one back on if you have to go in for any warranty work, it's a 30 minute job at most. The dealer isn't going to pop your hood, see it, and then void your warranty. They honestly don't care/have the time to care, it's BMWNA you have to worry about since they're the ones who handle large warranty claims

Originally Posted by TrentOSU View Post
Is map one just for a stock car? Like the 50-60whp gain? With no other modifications?
Yep, the JB4 was the best money I've ever spent on my car with my DP coming at a close 2nd. You really should get the charge pipe, a lot of people have blown them up at stock boost levels AND it's pretty cheap
2011 335i sedan 6MT, Pure Turbo Stage 2, JB4, MHD BEF, AA 4" DP, ER FMIC, AA turbo-back exhaust, ST Coilovers, BMS Intake, UUC DSSR+SSK, ER CP, BMS CDV, BMS OCC, Arkym CF trunk