BMW Downpipes for BMW 3 Series G20 (2019+)

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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Valvetronic Designs 400 Cell Catted Downpipe - BMW B58N (B58TU2) ...

For 2025+ model years

T#:52516254

Part#: B58FF400CBR

Ships in 1 Business Day

$ 1,999.99 USD

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$ 1,999.99 USD

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The Gen 2 B58 (B58N) turbocharged inline-6 is one of BMW’s most capable modern engines, known for its immense tuning potential and smooth power delivery. However, factory catalysts restrict exhaust flow and limit turbo efficiency. Our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce backpressure, improve turbo spool characteristics, and unlock a deeper, more aggressive exhaust tone — all while maintaining emissions compliance standards.

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Racing Dynamics Catted Downpipe - B58 G2x M340i/M440i

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

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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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Downpipe with High-flow Race Catalytic Converter

T#:584221

Part#: 524221

Ships in 3 Business Days

$ 2,460.00 USD

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$ 2,460.00 USD

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This Supersprint downpipe is designed to be a plug&play upgrade replacing the stock down pipe without any modification. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preference. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

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