Racing Dynamics BMW Downpipes for BMW 4 Series G22 (2021+)

Clear BMW chassis

When BMW began to offer more and more forced induction vehicles, some enthusiasts were upset and others were excited about the big power potential. While we love older, naturally aspirated BMWs, we LOVE forced induction BMWs. Upgrading your downpipe (or downpipes) is one of the easiest ways to reduce restriction and add more power to your BMW. We offer several brands, including our own designs, of downpipes for your BMW!

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Racing Dynamics Catted Downpipe - B58 G2x M340i/M440i

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:4988538

Part#: 1301058360

In Stock

$ 1,045.00

This product was last offered at the strikethrough price on
05-19-2026

$ 950.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 1,045.00

This product was last offered at the strikethrough price on
05-19-2026

$ 950.99 USD

Limited Qty Sale

Add to Wish List

Catted Downpipe by Racing Dynamics for B58 Powered G2x M340i/M440i including Xi models. These parts are intended for off road or track use only! This product is sold for off road use only. It is not legal for use on public highways. This product is not for sale or use in California. It is available to our international customers for use within legal limits in their area of residence. Features: Reduction in turbo lag Less stress from the turbocharger Up to 25hp increase from stock when paired with a proper tune Direct bolt-on replacement for OEM Large 4 1/2" inlet flange, 4" mandrel bent downpipe manufactured out of 304 stainless steel, TIG welded with brushed finish. Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound Includes flex joint to reduce vibration from the engine and allows alignment during installation Downpipe includes a 200 cell Euro 5 sport catalytic converter for a cleaner environment

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Racing Dynamics BMW Downpipes for BMW 4 Series G22 (2021+)

Racing Dynamics Catted Downpipe - B58 G2x M340i/M440i

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