BN B58 Gen3 (TU2) Catless Downpipe – Maximize Flow, Maximize Power
Unlock the true potential of your BMW with the BN B58 Gen3 (TU2) Catless Downpipe, engineered specifically for the latest B58TU2 engines found in the LCI G-series platforms. Whether you're looking to shave down performance times or simply want a more aggressive tone and throttle response, this downpipe is your go-to upgrade.
Designed with exacting tolerances, this catless downpipe fits flawlessly on B58 Gen3 (TU2) engines, including models like the G20 M340i, G22 M440i. Whether you're running a stock turbo or a hybrid setup, this downpipe delivers consistent performance gains by drastically reducing backpressure and heat soak.
Massive Power Gains – Expect quicker spool, increased turbo efficiency, and gains of up to 30-100whp when paired with a tune.
No Restrictive Catalytic Converter – catless design for optimal exhaust flow.
CNC Machined Flanges – For perfect OEM-like fit and easy installation.
T304 Stainless Steel – Rust-resistant and TIG-welded for long-lasting durability.
Check Engine Light? – Pair with a tune or CEL delete solution for seamless operation.
LCI BMW G20 M340i / xDrive with gen3
LCI BMW G22/G23 M440i / xDrive with gen 3
And all other B58TU2 Gen3-powered models
Note: This product is intended for off-road and racing use only. Not legal for sale or use on pollution-controlled vehicles in California or other states adopting similar regulations on public roads.
BN is trusted by enthusiasts and tuners worldwide for performance parts that deliver results. Our commitment to quality, fitment, and real-world testing means you get a downpipe that not only fits right—but performs even better.
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