Quote:
Originally Posted by PalestineM3
Hello!! I have a 2013 CPO 335is and was wondering what you guys think the best mods for performance would be? I was worried about the BMS DCI air intakes sounding kinda silly with that whole sound they make so I'd like some opinions on that and I heard jb4 causes alotta headaches which I had with my 335xi sedan and dont want anymore. How is the cobb tune? Less problems? Is it easy to put in and out because I dont wanna lose my warranty. Let a bro know!!  |
Same as a normal 335i with n54. The IS basically is identical engine wise but with a lame tune. Do first do a JB4 G5 or MHD tune, catless DP, charge pipe with bov or diverters, 7"fmic, inlets, outlets, then you move to stage 2 turbos and keep going.
I have a JB4 btw and have had a jb of some type for i years. No headaches at all and i have NOT heard it makes any from anyone who uses one. I have heard dealers and people scared make comments like this out of ignorance or because they are required to as bmw personnel.