Description
Upgrade your BMW 550i, 650i, X5, or X6 equipped with the powerful N63B44 4.4L V8 turbocharged engine with our premium Stainless Steel Downpipes featuring 200 CPSI Euro 5 catalytic converters. Engineered for high-performance enthusiasts, these downpipes are designed to maximize exhaust flow, resulting in a noticeable increase in horsepower and torque, particularly in the low to mid-range RPMs. Expect an increase of 10-15 HP thanks to the reduction in exhaust flow restrictions.
Crafted from 3" high-quality stainless steel, these downpipes offer superior heat resistance and durability. Each pipe features TIG welded construction and CNC machined flanges, ensuring a precise fit and long-lasting performance. The addition of braided stainless integrated flex pipes improves alignment, and the kit comes complete with O2 sensor bungs, gaskets, and bolts for a seamless installation.
Please note that BMW manufactured two types of downpipe connections—flange and slip fit—on different models between 2012-2013. This model is specifically designed for bolt-together flange connections. To ensure compatibility, we recommend you inspect your vehicle’s downpipe connection and provide your VIN number in the purchase order comment section.
Key Features:
- High-Quality Construction: Manufactured from 3" stainless steel for superior durability and heat resistance.
- Performance Upgrade: Increases horsepower and torque by improving exhaust flow; gains of 10-15 HP.
- Euro 5 Catalytic Converters: Featuring 200 CPSI Euro 5 catalytic converters for enhanced performance.
- Precision Engineering: TIG welded and CNC machined flanges for superior fit and durability.
- Complete Kit: Includes O2 sensor bungs, braided stainless flex pipes, gaskets, and bolts.
- Special Notice: For bolt-together flange connections only—verify connection type before purchase.
Fitment:
- BMW 550i (F01, F10) – 2011-2013 (4.4L Turbocharged Engine)
- BMW 650i (F12) – 2012 (4.4L Turbocharged Engine)
- BMW X5 (E70) – 2010-2013 (4.4L Turbocharged Engine)
- BMW X6 (E71) – 2008-2014 (4.4L Turbocharged Engine)
Note: These downpipes are intended for off-road and track use only. They are not legal for use on public highways. Not for sale or use in California. Available to international customers within legal limits in their regions.
