BMW B58 Stage 2 Engine Performance and Upgrades

Published by Glim February 3, 2026

For BMW B58 enthusiasts seeking enhanced power and refinement, the Stage 2 variant delivers a compelling blend of performance and innovation, setting new benchmarks in the Motorsport-inspired engine family.

FEATURE: BMW 440i B58 Stage 2 - Over 440BHP

FEATURE: BMW 440i B58 Stage 2 - Over 440BHP

Source: blog.phantomtuning.co.uk

BMW B58 Stage 2 Engine Overview

The Stage 2 evolution of the B58 inline-six represents a significant leap in power output and thermal efficiency. Boasting up to 523 horsepower in high-output configurations and improved fuel economy, this engine leverages advanced materials and precision tuning. Designed for dynamic driving experiences, it balances robust torque delivery with smoother operation, making it ideal for both daily driving and spirited performance on twisty roads.

BMW M140i & M240i B58 Stage 2+ Tuning Package

BMW M140i & M240i B58 Stage 2+ Tuning Package

Source: r44performance.com

Key Features and Technological Advancements

Among the standout features of the B58 Stage 2 are enhanced variable valve timing, improved cylinder deactivation, and a more responsive turbocharging system. These upgrades optimize performance across the rev range while reducing emissions and fuel consumption. The engine’s intelligent thermal management ensures reliability under demanding conditions, supported by high-quality internals that withstand prolonged high-load operation.

BMW M140i & M240i B58 Stage 2+ Tuning Package

BMW M140i & M240i B58 Stage 2+ Tuning Package

Source: r44performance.com

Upgrading and Performance Potential

Owners and tuning specialists recognize the B58 Stage 2’s vast upgrade potential. From cold-air intakes and high-flow exhausts to advanced engine management chips, enhancements can push output beyond 550 horsepower. Compatibility with performance components like upgraded transmissions and lightweight flywheels further elevates driving dynamics, appealing to those chasing track-ready performance without sacrificing daily usability.

2018 BMW 340i B58 Stage 2 - YouTube

2018 BMW 340i B58 Stage 2 - YouTube

Source: www.youtube.com

The BMW B58 Stage 2 stands as a benchmark in modern engine engineering—offering superior power, efficiency, and adaptability. Whether upgrading for more speed or simply appreciating its sophisticated design, this engine continues to impress as a cornerstone of BMW’s performance legacy. For enthusiasts, upgrading the B58 Stage 2 isn’t just an improvement—it’s a transformation.

WGM BMW 40i / B58 Engine Remap Service Stage 2 – M140i, M240i, 140i ...

WGM BMW 40i / B58 Engine Remap Service Stage 2 – M140i, M240i, 140i ...

Source: www.wgmotorworks.co.uk

Bootmod3 B58 Maps: Stage 1. (91 octane, 93 octane, E30) Stage 2. (91 octane, 93 octane, E30, racegas) Stage 2+ (91 octane, 93 octane, E30) Throughout the remainder of this post we will discuss the above B58 bm3 stages and recommended supporting mods for each.

NVM BMW B58 Stage 2 Package - NVM Shop

NVM BMW B58 Stage 2 Package - NVM Shop

Source: shop.nvmotorsport.com

We will also provide rough horsepower estimates for each stage dependent upon fueling. B58 Stage 2 or not worth it? Hello fellow F30 owners/aspirants. I've had my 340 LCI for 6 years now with an Akrapovic downpipe and driven for ~150,000 kms.

nvm bmw 440i stage 2 package uk Archives | NV Motorsport UK

nvm bmw 440i stage 2 package uk Archives | NV Motorsport UK

Source: www.nvmotorsport.com

I thought of getting stage 2 done (from a well known local place that will be adding an intercooler, methane kit and air intake). Stage 2+HPFP (up to 500HP/700NM, GEN1 B58 only, GEN2 has this power on ST2 map) - 93oct/98ron, 95oct/102ron, for cars equipped with high-flow downpipe, upgrade HPFP and no gasoline particulate filter. Stock/Stage 2/Stage 2+ E50/Big Turbo All times are GMT -5.

BMW 340i Touring B58 Stage 2 NVM - YouTube

BMW 340i Touring B58 Stage 2 NVM - YouTube

Source: www.youtube.com

The time now is 03:17 AM. The BMW B58 Stage 2+ tuning package is a cost effective method of transforming the performance of your B58 powered vehicle. The B58 engine can be found in a large range of BMWs from the M140i, M240i, 340i, 440i, 540i & more.

NVM are proud to put together a Stage 2 package for your B58 powered BMW with all the parts required for a stock vehicle. Most importantly, tuned live on the dyno. PRICE INCLUDES NVM Shielded downpipe + Panel filter + B58TU pump supplied and fitted with Stage 2 Mapping session on the DYNO! Fits M140i/M240i/340i/440i "NVM BMW B58 STAGE 2 PLUS Package - Supplied and Fitted at HQ".

Unlock your B58 with MG Flasher. Gain up to +120 HP with Stage 1-2 tunes. OBD flash at home, flex fuel ready, custom options included.

B58 Stage 2+ Add to cart Add to wishlist Categories: A90/91 Supra, BMW M340i (G20), Engine Build. B58 Stage 2 advise needed All times are GMT -5. The time now is 03:06 AM.

Gen 1 B58 2016-2019Gen 2 B58 2020 and up Options: Stage 1 (up to 1100)82mm Piston/RodTop fuel hoops Stage 2 (1150+)82-83mm Piston/Rod/Sleeves/Hoops Stage 2.5 (1150+HP includes race head)82-83mm Piston/Rod/Sleeves/Oring/Cnc Cylinder Head3.1 Liter b58 optional (83mm piston) Stage 3 (1200+)3.2-3.3 liter Stroker Kit/Sleeves/hoops/Big headstuds.