S68 Primary and Secondary Catted Downpipe Set

The Evolution Racewerks S68 Primary and Secondary Catted Downpipe Set is engineered to significantly reduce exhaust restrictions in turbocharged vehicles, leading to increased horsepower and torque. By replacing the restrictive factory catalytic converter with a high-flow 200-cell metallic unit, this downpipe set promotes better exhaust flow, resulting in a higher power curve, improved initial torque, and faster turbo spool-up times. Constructed from 100% 304-grade stainless steel, the downpipe set features mandrel-bent 3-inch piping for smooth exhaust gas transitions and 100% TIG welded seams for enhanced durability and quality. It incorporates a precision CNC-machined 3.5-inch V-band flange that matches the factory turbocharger's turbine housing, ensuring a direct fit. The O2 sensor is positioned at the factory location, and the set is compatible with both factory and aftermarket exhaust systems. Available options for the finish include Brushed, Polished, or a Black Ceramic Thermal Coating. The thermal coating helps reduce underhood temperatures by containing exhaust heat within the downpipe, which also maintains exhaust gas velocity and reduces backpressure, while adding corrosion resistance. The set includes all necessary hardware for a complete installation and comes with a Limited Lifetime Warranty.