Downpipe, Catted w/HS, BMW G20/G22 M340i/M440i Gen3 B58, 5 inch diameter, 2024+
130 10 58 557

Product Details
Unlock maximum exhaust flow and turbo efficiency with this 5-inch catted downpipe designed specifically for 2024+ BMW G20/G22 M340i and M440i equipped with the Gen 3 B58 BMW engine. Built for high-performance applications, this downpipe dramatically a Euro 5 Metallic Cat for reduced emissions but still has lower backpressure compared to the restrictive factory catalytic converter, allowing the turbo to spool faster and deliver stronger, more consistent power. The catalytic element is a high quality Euro 5 Metallic element producing less harmful pollutants.
Constructed from high-quality stainless steel, the
downpipe features smooth mandrel bends, precision TIG welds, and a durable flex
section to accommodate engine movement while maintaining a proper seal. The
oversized 5.0″ diameter maximizes exhaust flow, making it ideal for
tuned vehicles and higher boost setups.
This is a direct bolt-on replacement that retains
factory mounting points and sensor locations for straightforward installation.
Designed for off-road or track use, this catted downpipe will produce a
more aggressive exhaust note and typically can require ECU tuning to prevent a
check engine light.
Perfect for enthusiasts looking to push their Gen 3 B58
platform to the next level with improved power, sound, and throttle response.
Features:
- Fits 2024+
BMW G20/G22 M340i & M440i (Gen 3 B58)
- 5.0″
high-flow catted design for maximum performance
- Improves
turbo response, horsepower, and torque
- Precision
TIG-welded stainless-steel construction
- Integrated
flex section for durability and fitment
- Direct
bolt-on installation
- Designed for off-road / motorsport use only
- BMW M340i/ix B58 motor, G20/G22 2025+
BMW M440i/ix B58 motor, G20/G22 2025+
These parts are intended for off road or track use only!