Description
Upgrade the performance of your twin-turbo V8 BMW with the Active Autowerke Signature S63/N63 Catted Downpipes. Specifically designed for the BMW X5M, X6M, 550i, 650i, X5, and X6 models, these high-flow downpipes reduce exhaust back pressure, resulting in quicker turbo spool and increased horsepower. Made from 304 stainless steel, they ensure maximum durability and power output, with precise fitment for a seamless installation. Featuring ultra high-flow GESI catalytic converters, this downpipe system eliminates the Check Engine Light (CEL) and provides reliable emissions control while maximizing your engine’s potential.
Please note: G-body vehicles with the N63B engine require a different downpipe version. Contact Active Autowerke for accurate fitment.
Key Features:
- No CEL for catalytic efficiency
- GESI EPA registered high-flow catalytic converters, OBD2 compliant (except in California)
- Casted upper stainless steel V-Band for precise fitment
- 3-inch diameter piping for maximum power output
- Quicker turbo spool for improved engine response
- Rated for 500 to 850 horsepower applications
- Withstands up to 1500°F
- Ultra high-flow 400-cell per square inch catalyst
- TIG welded 304 stainless steel construction
- No cutting or welding required for installation
- 5-year/50,000-mile warranty on shell and tube ends, 2-year/25,000-mile warranty on catalytic core
Fitment:
- BMW X5 M (2010-2018)
- BMW X6 M (2010-2018)
- BMW X5 (2010-2019)
- BMW X6 (2010-2019)
- BMW 550i (2010-2016)
- BMW 650i (2010-2018)
Note: These catalytic converters are not legal for use in California. Federal law prohibits tampering with emissions control devices.
