Description
Upgrade your BMW B46 engine with the Evolution Racewerks Competition Series 4" Catted Downpipe and unleash its true performance potential. This high-quality downpipe is designed to fit all 2016+ X1/X2 models, as well as Mini Cooper S, Clubman, Cabrio, and Countryman vehicles. Unlike the B48 engine found in EU/Asia spec cars, the B46 engine is specifically catered to U.S. spec cars, requiring the correct downpipe for optimal performance.
Key Features:
- Now available for the 2015+ BMW X1/X2 B46 Engine and Mini Cooper S, Clubman, Cabrio, and Countryman.
- Experience average horsepower gains of 14 to 16whp (varies based on vehicle modifications) and torque gains of 20wtq (stock boost) up to over 24wtq (with a software upgrade).
- Enjoy a higher max horsepower power curve and an initial torque curve that hits faster, higher, and longer.
- Benefit from better throttle response and faster turbo spool up times.
- The 4" mandrel bent piping ensures a smooth transition to the exhaust system, while the 100% stainless steel construction and TIG welding guarantee top-notch quality.
- Our precision CNC machined turbocharger V-Band flange and stainless steel flex section provide optimal exhaust movement and flexibility.
- Choose between a mirror polish or brush finish, with the option of high temperature black thermal coating to reduce underhood temperatures.
- Additional options include an O2 sensor bung for wideband O2 sensors (pre-installed plug included) and an EGT sensor bung for EGT gauges (pre-installed plug included).
- Retains all factory heatshields and is compatible with both factory and aftermarket exhaust systems.
- Track tested for durability and backed by a limited lifetime warranty.
Restrictions in the exhaust system can significantly hinder horsepower and torque, especially in turbocharged cars. The factory catalytic converter, found in the stock downpipe, is a major culprit of exhaust flow restriction. Its "honeycomb" weaves create a substantial obstacle for exhaust gases, causing turbulence and slowing down the flow. By replacing the factory downpipe with our Competition Series 4" catted Downpipe, you'll experience a significant power increase. Our dyno testing has shown an average peak gain of 14-16whp and up to 24wtq, with a broader torque curve throughout the RPM range.
Built in the USA, our Competition Series catted Downpipes are constructed from 100% 304 grade stainless steel, ensuring exceptional durability. The mandrel bent piping and TIG welding by our skilled fabricators guarantee a precise fit and superior performance. We have replicated the factory turbocharger turbine housing's 4" V-Band flange using CNC machined billet 304 stainless steel. Our downpipe also incorporates a flex bellow section, which allows the exhaust system to move and reduces stress on components like the exhaust system, downpipe, turbocharger, and exhaust manifold.
Unlike some competitors who compromise on design, our downpipe maintains a consistent 4" diameter from the turbocharger outlet, reducing exhaust turbulence and backpressure. This results in improved throttle response and faster turbocharger spool times, minimizing turbocharger lag. Our commitment to durability is evident in the inclusion of a 100% stainless steel flex section, which prevents premature wear and tear, and allows for proper deflection of impact, ensuring longevity.
For additional benefits, choose our ceramic thermal coating option, which retains heat within the downpipe, reducing underhood temperatures and maintaining exhaust flow velocities. This coating also provides added corrosion resistance. We offer the best ceramic coating capable of withstanding temperatures up to 2000°F, available in black.
Furthermore, you have the option to add an additional O2 sensor bung, pre-installed with a plug, allowing easy installation of a wideband O2 sensor and gauges for precise air/fuel ratio monitoring. Additionally, you can opt for an EGT (Exhaust Gas Temperature) bung, also pre-installed with a plug, enabling the addition of an EGT sensor and gauge.
Upgrade your BMW X1, X2, or Mini with Evolution Racewerks' Competition Series 4" Catted Downpipe and experience the instant difference in power, performance, and durability. Our product is backed by extensive dyno and track testing, ensuring that you receive a top-tier upgrade for your vehicle. Take your driving experience to the next level today!
