M340i Bmw B58

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. 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. Learn about the BMW M340i engine specs, reliability, performance, and common concerns. Understand how the B58 inline.

BMW upgrades B58 3.0-liter TwinPower Turbo straight-six; M340i now gets 392. 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. Does 2021 BMW M340i have B58 engine? 8/9 The Award-Winning B58 Engine In the M340i, it develops a healthy 382 hp.

That figure, combined with xDrive and the silky smooth 8-speed auto means that the M340i can roar its way to 60 mph in a blistering 4.1 seconds. That's faster than an E92 M3. 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. Explore the features and specifications of the 2026 BMW 3 Series Sedan M models.

Find information on transmission, engine type, drivetrain, and more. 2026 BMW M340i performance specs The B58's closed-deck design and upgraded cooling let it handle stress far better than older BMW engines. These smart engineering choices mean more consistent performance and less wear over time.

In stock form, the engine feels completely under control, which is a big reason why it's so reliable in the. M340i LCI1 should just call it the B58 with a car around it. Positives.