bootmod3 for BMW B48 Engine Vehicles - Now Available! BMW Fxx Gxx 120I 125I 220I 225I 320I 330I 420I 430I 520I 530I X3/X4 20I 30I

By Srdjan Bajat

bootmod3 closed beta for the B48 engines has been a great success and we're excited to announce the wait is finally over!

Our development and testing teams have worked tirelessly on BMW B48 engine feature support over the past few months. Once B58 was released back in April focus shifted to B48 testing with a wider closed beta. Initial flash time that includes unlocking the DME is around 3 minutes and switching maps takes just 19 seconds using the standard ENET-OBD cable available on Amazon/eBay or through even some authorized dealers.

Licenses and more info can be seen by clicking on the link provided below:


Top speed limiter removal
Exhaust burble adjustments in app on any map (OTS and custom)
Exhaust flap adjustments
Cold start (cat heating on startup) removal for quieter cold start
Cat efficiency check (CEL) removal for de-cat downpipes (for off-road use)
Maps for upgraded turbos
E85, race gas and meth injection tuning
Custom Throttle mapping

Power and torque gains differ between the 20i and 30i models due to slight changes in engine setup as well as factory power curves. Here is a breakdown of the gains in percentages compared to stock, see below. We're also attached some sample dyno graphs on a 20i and a 30i test vehicles.

B48 20i:
Stage 1 91 octane: up to 42% HP / 46% TQ
Stage 1 93 octane: up to 46% HP / 48% TQ
Stage 1 E30 octane: up to 53 % HP / 50% TQ
Stage 2 91 octane: up to 50% HP / 48% TQ
Stage 2 93 octane: up to 54% HP / 50% TQ
Stage 2 E30 octane: up to 60% HP / 55% TQ

B48 30i
Stage 1 91 octane: up to 14% HP / 26% TQ
Stage 1 93 octane: up to 16% HP / 26% TQ
Stage 1 E30 octane: up to 20% HP / 28% TQ
Stage 2 91 octane: up to 16% HP / 28% TQ
Stage 2 93 octane: up to 18% HP / 28% TQ
Stage 2 E30 octane: up to 22% HP / 30% TQ
Stage 2 AGG (Aggressive burble) versions of maps available
Race gas maps are on the way!

B48 engine BMW Vehicles supported (if your B48 vehicle is not listed please inquire with us):
2016–2019 F20/F21 120i/125i
2016–present F22/F23 220i/230i
2016–2019 F30/F31/F34 320i/330i
2016–present F32/F33 420i/430i
2016-present F32/F33/F36 420i/430i
2017–present G30/G31 520i/530i
2017-present G01 X3 20i/30i
2018-present G02 X4 20i/30i

NOTE: Latest G series model support (e.g. 2019 G20 330i) come with a different flavor of the Bosch MG1 DME (MG1 Aurix) and support for their OBD unlock is coming out very soon.

Its been a ton of fun working through the initial development and w're really looking forward to seeing where the platform takes us from here!


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