N55 Gang
N55 335i, FBO, MHD stage 2+
iX xDrive50 - real world range in winter
i7 / iX·7 months ago·2·104Lowering springs vs coilovers - which is better for daily?
Suspension & Brakes·7 months ago·2·80F10 535i N55 - turbo upgrade options
F10 / F11·7 months ago·3·107Alcantara steering wheel wrap - DIY or professional?
Interior & Exterior·7 months ago·2·94
BMW performance tuning for beginners - complete guide to getting more power safely
One thing I'd add about safety - get a JB4 or similar piggyback tune if you want to keep your warranty intact. Piggyback tunes sit between the ECU and the sensors, so they're undet...
5 months ago
ECU file service - stage 2 map for N55 with meth injection
Running a similar setup on my 335i. Stage 2 with meth injection on the N55 is a sweet spot - around 400-420hp depending on the tune. Make sure your meth kit has a failsafe that pul...
5 months ago
WTS: Wagner Tuning FMIC for F30/F32 - used 6 months
PM sent. Interested if the price is right. What version is it - the EVO1 or EVO2? And does it come with the mounting brackets?
5 months ago
B58 stage 2 - catless downpipe recommendations?
Wagner is the best quality but also the most expensive. If budget is a concern, VRSF is the sweet spot. Avoid the super cheap Turkish brands, fitment can be hit or miss.
6 months ago
BMW N54 stage 2 tuning guide - from stock to 400hp
Running exactly this setup on my 335i. Can confirm 400hp is very achievable and reliable on the N54. One thing I would add - upgrade the oil cooler if you plan to do any spirited d...
6 months ago
Downpipe install on F30 - how hard is it DIY?
Downpipe install on F30 is doable on jack stands but its tight. The hardest part is the bolts connecting to the turbo - they can be seized. Use penetrating oil the night before.
6 months ago
Stage 2 diesel - 330d E90 making 350hp
350hp and 680nm from a 330d is insane. That torque number is crazy for a 3 series. Does the clutch/auto handle it ok?
6 months ago
Popbangs/crackle map on B58 - is it bad for the engine?
xDrive is worth it in Lithuania. The winters are harsh and xDrive makes a huge difference in snow. Yes it adds weight but the safety benefit is worth it.
7 months ago
CMD Flash vs KTag vs Autotuner - which ECU tool to buy?
Good guide on valve cover gasket. One tip: replace the eccentric shaft sensor seal at the same time. Its right there and only costs 10 EUR for the seal.
8 months ago
Coilover comparison - KW V3 vs Bilstein B16 vs BC Racing
dont cheap out on suspension. you get what you pay for. KW V3 is worth the extra money for the ride quality alone
8 months ago
Bio
N55 335i, FBO, MHD stage 2+
Member since
Mar 11, 2026
Role
member
