BMW Downpipes for BMW 3 Series G20 (2019+)

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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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CTS - Corporate Logo
T#:18932307
Part#: EXH-DP-0037-CAT
Ships in 1-2 days
$ 429.99 USD
Free Shipping
$ 429.99 USD
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The CTS Turbo High-Flow Cat for the BMW B46 is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts – unleash your BMW’s potential! Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance. Product Details: Precisely designed and tested on a real car in the real world T304 stainless steel, TIG welded back-purged construction Replaces restrictive factory downpipe with high-flow 200 cell catalytic converter Great power upgrade with uncompromising performance Incredible sporty exhaust sound, subtle when cruising No drone with factory exhaust The use of stage 2 software is strongly recommended to avoid the CEL from coming on.
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Valvetronic Designs - Corporate Logo
T#:52516254
Part#: B58FF400CBR
Ships in 1 Business Day
New Item
$ 1,999.99 USD
Free Shipping
$ 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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CTS - Corporate Logo
T#:589514
Part#: CTSEXHDP0024CAT
In Stock
$ 459.99 USD
Free Shipping
$ 459.99 USD
Free Shipping
Maximizes exhaust flow for uncompromising performance.

Supersprint - Corporate Logo
T#:584221
Part#: 524221
Ships in 3 Business Days
$ 2,460.00 USD
Free Shipping
$ 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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Supersprint - Corporate Logo
T#:393674
Part#: 524241
Ships on Oct 21, 2026
$ 2,940.00 USD
Free Shipping
$ 2,940.00 USD
Free Shipping