About This Tune
Our flagship B58 Stage 2 calibration is designed for enthusiasts seeking maximum performance from their turbocharged inline-6. This tune optimizes boost pressure, fuel delivery, ignition timing, and VANOS positioning for peak power output. Requires a catless or high-flow catted downpipe and upgraded front-mount intercooler. Compatible with both automatic and manual transmissions. Includes anti-lag and burble overrun features. Custom revisions included for your specific modifications.
Features
B58 Stage 2 Performance
BMW 340i / M240i / 440i · 2016-2020
Instant delivery · Free revisions included
Customer Reviews
Based on 3 reviews
2019 BMW 340i xDrive
Absolutely transformed my 340i
Went from feeling like a fast sedan to a straight-up rocket ship. The power delivery is incredibly smooth and the anti-lag feature is addicting. Dyno showed 385whp on 93 octane. BimmerBoost Labs nailed it. Communication was great throughout the process and the revision turnaround was fast.
2020 BMW M240i
Best B58 tune on the market
I've tried three different tuners for my B58 and this is by far the best calibration. The power is there but it doesn't feel unsafe or unrefined. Daily drove it for 6 months with zero issues. Trans tune makes a huge difference on the ZF8.
2018 BMW 340i
Great tune, cold weather quirks
Power delivery is fantastic and the car feels alive. Only minor issue is some cold start roughness in sub-20°F temps. Tuner said they're working on a winter revision. Overall extremely happy with the purchase.