Description
Unlock the full potential of your BMW X3M and X4M with the Active Autowerke Signature Downpipes for the S58 engine. Designed to improve turbo efficiency and power, these downpipes feature 3" stainless steel piping and include a pair of 4.5" GESI high-flow catalytic converters that won’t trigger a CEL. The GESI catalytic converters are EPA-compliant in 49 states, making them a performance upgrade that retains emissions compliance while improving performance.
By replacing the restrictive factory downpipe, the Active Autowerke S58 downpipes increase exhaust flow, allowing your turbo to spool faster and improve overall engine efficiency. The robust construction ensures long-lasting durability, and the simple bolt-on installation means no cutting or welding is required.
Key Features:
- Fits BMW F97 X3M and F98 X4M (S58 engine)
- No CEL for catalytic efficiency
- GESI EPA registered high-flow catalytic converters
- 4.5" diameter piping for maximum power output
- Quicker turbo spool and improved horsepower
- Rated for 500 to 850 HP applications
- Withstands temperatures up to 1500°F
- Full 304 stainless steel construction with TIG welding
- 400 cell per square inch catalyst
- Bolt-on installation, no cutting or welding required
- EPA compliant for OBD2 vehicles (1996 and newer) except in California
- Made in Miami, Florida
- 5-year/50,000-mile warranty on shell and tube ends, 2-year/25,000-mile warranty on the catalytic core
Benefits: The Active Autowerke Signature Downpipes significantly reduce exhaust back pressure, allowing your turbo to spool faster and more efficiently, resulting in noticeable horsepower and torque gains. Built from high-grade stainless steel, these downpipes are designed for long-lasting durability and trouble-free installation, making them a perfect upgrade for your BMW X3M or X4M.
Fitment:
- BMW F97 X3M (2019+)
- BMW F98 X4M (2019+)
