Borla XR-1 Multicore 2.5in Inlet 4in Outlet RDX 14in SLK R172 [2011-2015] but a performance and fitment

but a performance and fitment upgrade as well

This compact light features single row of LEDs and is available in multiple beam patterns

Donaldson(R) PowerCore(R) Ultra Web(R) Air Filters are 99

BBK Performance supplies a new throttle position sensor on most of their throttle bodies but if you have a stock or even aftermarket TPS sensor that is suspect and needs replacing then these direct replacement BBK Performance throttle position sensors are what you need to get your car running properly again

Borla XR-1 Multicore 2.5in Inlet 4in Outlet RDX 14in SLK R172 [2011-2015] but a performance and fitmentXR 1(r) Multi Core Racing Muffler. 2. 5" Center Inlet 2. 5" Center Outlet 4" Round x 14" Long Body 19" Overall Length. Compact 4" diameter muffler body is perfect for applications with limited space and can be used on a wide range of vehicles. This muffler is sometimes referred to as a 'Hot Rod' muffler. It features BORLA(r)'S patented Multi Core 3 tube design for maximum flow, horsepower, and torque. The Multi Core portion of XR 1(r) mufflers flows