BMW Downpipes for BMW F83 M4 S55 3.0L

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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 3" Stainless Steel Downpipe With High-Flow Cats - F8X S55 ...

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T#:14254799

Part#: EXH-DP-0025-CAT

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$ 599.99 USD

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$ 599.99 USD

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CTS Turbo is proud to announce the release of our High-Flow CATS for BMW F80/F82 M3/M4/M2 Competition Our stainless steel high-flow CAT downpipes allow for faster spool, better transient boost response, higher boost, and great sound. Our downpipes are the first part of our modular exhaust system and are compatible with factory mid-pipes and our upcoming CTS Turbo mid-pipes. You should expect strong torque gains when paired with appropriate tuning software. We used CAD simulation to streamline the flow of exhaust gasses and ensure seamless integration with the factory and CTS exhaust components. Many hours of R&D were spent to ensure a perfect fit, smooth exhaust flow, and excellent sound. Use of Bootmod3 software compatible and is strongly recommended. CEL will illuminate if correct software tuning is not used. Features: Large 3″ Durable 304 food-grade stainless steel Laser-cut flanges Factory-like placement of O2 sensors Designed using the latest 3D scanning technology Exhaust flow simulated with CAD software to ensure optimal flow routing Perfect fit with factory or aftermarket mid-pipes Aggressive sound – really makes that S55 scream Fitment: 2015+ BMW S55 M3 (North America) 2015+ BMW S55 M4 (North America) 2018+ BMW S55 M2C (North America) Stage 2 software is required to avoid check engine light.

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Downpipe To Cat-Back Reducer - Priced Each

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

T#:22427013

Part#: 006555ECS06B

In Stock

Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD

Add to Wish List

Qty

Sale - Save 25%

$ 39.99

This product was last offered at the strikethrough price on
06-14-2026

$ 29.99 USD

Add to Wish List

Upgrade your exhaust system with the Downpipe To Cat-Back Reducer.

Engineered for optimal performance and durability, this reducer allows for seamless connection between your downpipe and cat-back exhaust system. Its high-quality construction ensures a tight seal, reducing exhaust leaks and enhancing overall exhaust flow. With easy installation and compatibility with various exhaust systems, this reducer is a must-have for any performance enthusiast.

Allows for seamless connection between downpipe and cat-back exhaust
High-quality construction for durability
Tight seal reduces exhaust leaks
Enhances overall exhaust flow
Easy installation and compatibility with various exhaust systems

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BMW Downpipes for BMW F83 M4 S55 3.0L

CTS 3" Stainless Steel Downpipe With High-Flow Cats - F8X S55 ...

Downpipe To Cat-Back Reducer - Priced Each

Upgrade your exhaust system with the Downpipe To Cat-Back Reducer.

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