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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > 2012 335i n55 build



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      02-04-2023, 09:19 PM   #1
Heisenberg
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2012 335i n55 build

Hey all so I finally got the last of my parts installed today and won't be able to get on the dyno till next weekend. My target is 400hp but have a feeling I'm in the 385ph range. I don't have easy access to E85 FYI but so far I've got...

1.vrsf charge pipe
2.vrsf 5in intercooler
3.jb4 map 2
4.bms intake
5.high flow cat
6.vrsf turbo outlet charge pipe
7.vrsf high flow intake inlet
8.kompact em bov vr9

what else should I add to hit that 400-420hp range? would a pure stage 1 turbo do the trick? really want to stay away from water/meth injection read lots of negatives with it and the tranny.
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      02-06-2023, 07:56 AM   #2
Schmidty335i
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Quote:
Originally Posted by Heisenberg View Post
Hey all so I finally got the last of my parts installed today and won't be able to get on the dyno till next weekend. My target is 400hp but have a feeling I'm in the 385ph range. I don't have easy access to E85 FYI but so far I've got...

1.vrsf charge pipe
2.vrsf 5in intercooler
3.jb4 map 2
4.bms intake
5.high flow cat
6.vrsf turbo outlet charge pipe
7.vrsf high flow intake inlet
8.kompact em bov vr9

what else should I add to hit that 400-420hp range? would a pure stage 1 turbo do the trick? really want to stay away from water/meth injection read lots of negatives with it and the tranny.
Honestly with everything you mentioned i would link mid 300 whp. You really need E or meth if you want any significant gains. i also have a 2012 335i, do you know if you have the old or new style HPFP? i had the new style and had to upgrade it with a spool unit. also if i were you i would skip the PS1 and go to the PS2 if you want a nice and easy 400hp.

also i would research into meth more if i were you, i have been running it basically since i got my car and it is my favorite mod i have done. been going strong for 50k miles with it no issues.

Good luck and keep us updated on your dyno!
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      06-20-2023, 06:32 PM   #3
dgman10
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A lpfp such as a walboro 450 and a custom tune will help. Ull need the updated hpfp If not already done. With everything you have and these things listed plus e50 guys have hit 450
That being said pures are a good way to go but I would recommend stage 2 as well
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