Active Autowerke BMW N63 S63 GESI G-Sport Catted Downpipes

The Active Autowerke BMW N63 S63 GESI G-Sport Catted Downpipes are expertly designed to maximize performance and efficiency for BMW X5M, X6M, 550i, 650i, X5, and X6 models equipped with the twin-turbo V8 S63/N63 engine. By significantly reducing exhaust back pressure, these high-flow downpipes allow the turbochargers to spool faster, resulting in quicker throttle response, increased horsepower, and improved overall performance. Constructed from handcrafted 304 stainless steel, these downpipes feature full 3-inch piping with minimal bends, ensuring unrestricted airflow and enhanced turbo efficiency. Unlike restrictive factory setups, this upgrade optimizes exhaust flow, delivering a more aggressive and refined exhaust note while maintaining durability for long-term use.

This variant includes a pair of 4.5-inch ultra high-flow GESI G-Sport catalytic converters, designed to provide superior emissions control without sacrificing performance. The GESi G-Sport Ultra High Output Catalytic Converters are EPA registered, 49-state legal, and fully OBD2 compliant, making them an ideal solution for reducing emissions while maintaining high performance. Built entirely from 304 stainless steel, including the substrate, these high-flow converters use proprietary precious metal loading technology to significantly reduce emissions, eliminate Check Engine Lights (CELs), and support engines producing between 500 and 850 horsepower. The reduced back pressure allows for maximum power gains while ensuring compliance with modern emissions regulations, making these downpipes the perfect upgrade for performance enthusiasts who want power without compromise.

Whether you’re looking for increased power, better turbo response, or an aggressive exhaust tone, these high-performance catted downpipes provide the ultimate balance of performance and emissions compliance, making them a must-have upgrade for any BMW N63 or S63 twin-turbo V8 engine.

KEY FEATURES:

• NO CEL for catalytic efficiency when using this downpipe
• GESI EPA registered high flow and fully OBD2 compliant
• Casted upper stainless steel V-Band for precise fitment
• Full 3 inch diameter piping allows for maximum power output
• Quicker turbo spool
• Rated for 500 to 850 hp applications
• Withstands up to 1500 F
• Can reach operational efficiency within 9 seconds of start up
• Easily bolts-on no cutting or welding required
• Durable construction from TIG welded 304 stainless steel
• Precise fitment
• Ultra high flow 400 cell per square inch catalyst
• EPA compliant for use on OBD2 vehicles (1996 and newer)
• 304 stainless steel substrate is furnace braised to the mantle for outstanding durability
• GESi proprietary precious metal loading technology ensures greatly reduced emissions
• Ideal for Forced Induction Applications with no loss of HP
• Both passengers and drivers are safe from harmful emissions and noise
• Covered by 5 Year / 50,000 Mile Warranty (on shell and tube ends) and 2 year / 25,000 Mile Warranty on the Catalytic core to original purchaser only – NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core
• Made in Miami, Florida

APPLICATIONS

• 2009-2017 BMW F10 550i
• 2012-2017 BMW F07 550i
• 2011-2019 BMW F06 F12 F13 650i
• 2014-2019 BMW F85 X5M
• 2014-2019 BMW F86 X6M
• 2008-2014 BMW E70 X5M
• 2008-2014 BMW E71X6M

NOTES:

Due to potential variations in exhaust system fitment, professional installation is recommended for optimal results.

For G Series BMW models with the N63B engine, a different version of the BMW N63 S63 GESI G-Sport Catted Downpipes is required, as F Series and G Series fitments are not interchangeable.