BMW M340i B58: Power, Precision, and Performance
The BMW M340i B58 redefines sporty luxury with its potent inline-six engine and refined driving dynamics. Built on BMW’s CLAR platform, this B58-powered sedan combines efficiency with exhilarating performance, making it a top choice for discerning drivers. With a twin-turbocharged 3.0-liter inline-six, the M340i delivers responsive acceleration and refined power delivery, all while maintaining impressive fuel economy for a performance-oriented model.
Inside, the M340i B58 offers a driver-focused cockpit featuring a high-resolution curved display, intuitive M Drive M Sport modes, and premium materials that elevate the cabin experience. Its low center of gravity and balanced chassis tuning ensure sharp handling, sharpened by adaptive damping and responsive steering.
Out on the road, the B58’s harmonized power and efficiency deliver seamless performance across city and highway. Whether merging smoothly through urban traffic or carving through winding roads, this sedan exemplifies BMW’s commitment to engineering excellence. For enthusiasts and daily drivers alike, the BMW M340i B58 merges luxury with precision—where performance meets everyday practicality.
Concluding, the BMW M340i B58 stands out as a benchmark in the luxury performance sedan category. Its blend of power, refinement, and intelligent technology makes it a compelling choice for those seeking both poise and prowess. Experience the perfect balance—where every drive feels engineered to perfection.
The BMW M340i B58 is more than a sedan—it’s a statement of refined performance and intelligent engineering. With its powerful B58 engine, luxurious interior, and dynamic handling, it delivers an unmatched driving experience. For those seeking excellence in both power and refinement, this model sets a new standard. Discover the M340i B58 today and redefine what a luxury performance car can be.
BMW is updating its B58 six-cylinder engine for the M240i, M340i, and M440i. Power rises to 386 hp with more torque, while fuel consumption drops. Here's what's new for November 2025.
The BMW B58 is a turbocharged straight-six engine, which began production in 2015. [1] The B58 replaced the N55 and was launched in the F30 340i. [2] The B58 is part of BMW's modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following the B38 and B48 engine.
[3] The B58 engine was named to Ward's World's 10 Best Engines five times, in 2016 (installed. Learn about the BMW M340i engine specs, reliability, performance, and common concerns. Understand how the B58 inline.
BMW M340i and M340d Part of the latest G20/G21 generation 3 Series range, the M340i sedans and wagons produce 382 horsepower and 369 lb-ft of torque from their B58 engine, rocketing them from 0-60 mph in under 4.4 seconds. Crisp steering and balanced handling helps translate all that muscle into grins. BMW M440i Essentially a coupe version of the 3 Series, the gorgeous new G22 BMW M440i also.
BMW upgrades B58 3.0-liter TwinPower Turbo straight-six; M340i now gets 392. The B58 engine is featured in various BMW models, including the M340i and 340i from the 3 Series, certain variants of the 5 Series and 7 Series, X Series SUVs like the X3 M40i, X5, X6, and X7, as well as the Z4 Roadster and some 8 Series models. Top-mount turbo kit for 2020-2024 BMW M340i & M240i B58 Gen 2.
Available in two runner sizes, built for PTE turbos. Built to order. A Platform That Evolves BMW has released several versions of the B58 over the years, each tuned for different models and performance goals.
Early models, such as the F30 340i, produced roughly 320 to 335 horsepower. Later versions unlocked more potential, with cars like the M340i and Z4 M40i pushing past 380 horsepower. BMW has tuned the B58 engine differently across its models to cater to various driving preferences.
For instance, the M340i features a more aggressive tuning that enhances its sporty character, while the 740i leans towards a more refined and smooth driving experience. Regardless of the model, the B58 delivers a satisfying blend of power and. In this video I'll tell you how to modify and tune your BMW M340i or any BMW with a B58 engine to get 500 hp, 600 hp, or even 700 hp & more! I'll go over a B58 with stage 1, stage 2, stage 3 and.