Description
Discover the ultimate performance upgrade for your BMW S58 engine with the Active Autowerke BMW S58 F97/F98 X3M/X4M Catted Downpipe. As BMW introduced the evolution to the S58 engine, the twin turbo variant used in the M-series vehicles continues to deliver exhilarating power. However, the OEM downpipes restrict the engine's full potential. That's where Active Autowerke comes in.
Turbochargers rely on the efficient evacuation of spent exhaust gases to generate power. Unfortunately, the factory downpipe in the S58 engine is somewhat restrictive, leading to slower exhaust gases and delayed turbo spool. Our solution? The Active Autowerke X3M/X4M S58 Signature downpipe.
Crafted from 3-inch diameter stainless steel piping, our downpipe provides a significant power increase, quicker turbo spool, and exceptional durability. We've incorporated stainless flex joints and maintained a diameter of 70mm, meeting the OEM exhaust system standards without compromising performance.
What sets our downpipe apart is the inclusion of a pair of 4.5" high flow GESI catalytic converters. These advanced converters ensure a CEL-free experience while maintaining optimal emissions compliance. With full 304 stainless steel construction, including the substrate, the GESi G-Sport Ultra High Output Catalytic Converter guarantees reduced emissions and eliminates most "Check Engine Lights."
The GESi UHO-Series Catalytic Converters are specifically designed for engines producing between 500 and 850 horsepower, allowing you to unlock your engine's true potential without sacrificing emissions compliance. Bid farewell to Check Engine Lights and failed emissions tests!
Please note that due to California Vehicle Code Section 27156 and 38391, these catalytic converters are not legal for use on vehicles registered in the state of California.
Rest assured, our downpipe complies with federal law regarding emissions control devices. Under Mobile Source Enforcement Memorandum 1A, aftermarket parts can be used for emissions control system repair or replacement as long as emissions are not adversely affected. The GESI catalytic converter meets or exceeds EPA standards, though not CARB standards.
Key Features:
- Experience a CEL-free performance with our downpipes
- GESI EPA registered high flow converters ensure full OBD2 compliance
- Casted upper stainless steel V-Band for precise fitment
- 4.50" diameter piping maximizes power output
- Quicker turbo spool for enhanced performance
- Rated for 500 to 850 horsepower applications
- Withstands up to 1500 F, ensuring durability and reliability
- Operational efficiency within 9 seconds of startup
- Easy bolt-on installation with no cutting or welding required
- TIG welded 304 stainless steel construction for long-lasting performance
- Ultra high flow 400 cell per square inch catalyst
- EPA compliant for use on OBD2 vehicles (1996 and newer) except in California
- GESI proprietary precious metal loading technology reduces emissions effectively
- Perfect for forced induction applications with no loss of horsepower
- Provides a safe and emission-compliant driving experience for passengers and drivers alike
- Covered by a 5-Year/50,000 Mile Warranty on the catalytic converter
- Proudly made in Miami, Florida.
Upgrade your S58-powered X3M or X4M with the Active Autowerke S58 Signature Downpipes and unleash its true potential. Enjoy a quicker turbo spool, increased horsepower, and a remarkable driving experience. Our downpipes are designed for performance enthusiasts who demand both power and compliance. Trust Active Autowerke for the finest in BMW performance upgrades.
