Stage 2 Tuning

Some tuners offer "stage 2" maps that dont require hardware mods. Is this legit or just a marketing gimmick? I thought stage 2 always means downpipe + intercooler at minimum…

Thinking about upgrading your turbo? Here's what I've learned after doing turbo upgrades on three different BMWs. Hybrid turbos A hybrid turbo uses the stock turbo housing but…

Ive seen some tuners claiming 500hp on stock B58 turbos with stage 2 and E85 fuel. Is this realistic or are they measuring at the crank and exaggerating? My M340i is currently…

Going stage 2 on my G20 M340i B58. Need a catless downpipe. Looking at VRSF, Wagner, and a few Turkish brands. Whats the best quality for the money? Also worried about drone - do…

The N54 twin-turbo engine is one of the best tuning platforms BMW ever made. Heres a complete guide to building a reliable 400hp N54. Stock power: 306hp / 400nm Required mods for…

E85 ethanol fuel is the cheapest power modification you can do on a turbocharged BMW. The higher octane rating (105 RON equivalent) allows more ignition advance and boost…

Finally finished my N54 stage 2 build. Heres the full mod list: Catless downpipes FMIC upgrade (Wagner) Intake (aFe) MHD stage 2+ map Index 12 injectors New spark plugs (NGK)…

Just dyno tested my E90 330d after stage 2 tune. 350hp and 680nm torque. Mods are DPF delete, EGR delete, custom intercooler, and stage 2 remap. The torque is insane, it pulls…

Want to install a catless downpipe on my F30 335i for stage 2. How difficult is this as a DIY job? I have basic tools and a jack. Main concerns: Do I need to drop the exhaust…

Been running stage 2 on my F30 335i N55 for about 50,000 km now. Wanted to share my experience for anyone worried about reliability. Mods: catless DP, FMIC, BM3 stage 2 map on 98…