N63 200 CEL Catted Downpipes

The Evolution Racewerks N63 Engine 200 CEL Catted Downpipes are engineered to significantly enhance the performance of your twin-turbo S63 engine by eliminating restrictive factory components. The stock catalytic converter, with its honeycomb structure, creates turbulence and restricts exhaust flow, hindering horsepower and torque gains. These downpipes feature a high-flow, 200-cell metallic catalytic converter, which offers a less restrictive path for exhaust gases. This design translates to a noticeable increase in power and torque, faster turbo spool-up, and improved throttle response, making the vehicle feel more immediate and powerful. Crafted from premium 100% 304-grade stainless steel, these downpipes utilize mandrel-bent piping to ensure smooth transitions and optimal exhaust flow. A key design element is the replicated 3.5” V-Band flange for the factory turbocharger turbine housing, precisely CNC machined from billet stainless steel. To facilitate a hassle-free installation, the original O2 sensor position is maintained, ensuring compatibility with both factory and aftermarket exhaust systems. They come with all necessary hardware included for a complete installation and are backed by a Limited Lifetime Warranty. However, it is crucial to note that this product is intended for OFF-ROAD COMPETITION USE ONLY and is not legal for use on pollution-controlled vehicles on public roads or highways. It is for sale for all 49 states excluding California, and a Vehicle Compliance Waiver must be signed. This item is not for sale, installation, or use on licensed vehicles in the state of California. Fitment is specific to the BMW M550i G30 (2016-2018) and BMW M850i G14 | G15 | G16 (2016-2018) models equipped with the N63 or S63 engines.