Description
For over 30 years, Active Autowerke has been a trusted name in BMW performance products, known for enhancing the performance of BMW vehicles with precision-engineered parts. The newest addition to the F87 M2C, F80 M3, and F82 M4 lineup is the Active Autowerke F8X Catted Downpipes, developed for precise fitment and superior performance.
These downpipes feature a pair of 4" ultra high-flow GESI catalytic converters (Gen 2 Advanced) designed to prevent a check engine light (CEL) from occurring, while improving both performance and exhaust flow. With full 304 stainless steel construction, including the substrate, the GESI G-Sport High Output Catalytic Converters are built for durability and performance, making them perfect for forced induction applications. These converters are EPA-registered and compliant in 49 states, making them suitable for use on OBD2 vehicles (1996 and newer).
The reduced back-pressure of these ultra high-flow catalytic converters allows you to maximize your engine’s horsepower without harmful emissions, while the precision-fit design ensures an easy, bolt-on installation with no cutting or welding required.
Key Features:
- No CEL for catalytic efficiency
- Faster turbo spool and enhanced throttle response
- Improved low-end and mid-range performance with higher boost levels
- GESI EPA-registered high-flow catalytic converters (49-state compliant)
- 4" piping for optimal flow and power output
- Withstands temperatures up to 1500°F
- Reaches operational efficiency within 9 seconds of startup
- Bolt-on installation with no cutting or welding required
- Durable TIG-welded 304 stainless steel construction
- Ultra high-flow 400-cell-per-square-inch catalyst
- Accepts OEM O2 sensor heat shield
- Ideal for forced induction applications with no loss of horsepower
- 5-year/50,000-mile warranty on the shell and tube ends, 2-year/25,000-mile warranty on the catalytic core (note: warranty void with excessive exhaust burble)
- Made in Miami, Florida
Fitment:
- BMW F87 M2 Competition (2019+)
- BMW F80 M3 (2015-2018)
- BMW F82/F83 M4 (2015-2020)
Note: These catalytic converters are not legal for use on vehicles registered in California due to specific state emissions regulations.
