K&N Custom XD Air Filter - Round 14in OD x 5in H - E-3978XD fits_2012-`Mercedes-Benz`SLK uninterrupted airflow straight into the

uninterrupted airflow straight into the throttle body

0L coolant hose kit using OEM-quality EPDM rubber

and powder coated for maximum durability

Our intercooler upgrade kit is a direct bolt on utilizing your stock mounting points with purpose built aluminum cast end tanks for the Golf R

K&N Custom XD Air Filter - Round 14in OD x 5in H - E-3978XD fits_2012-`Mercedes-Benz`SLK uninterrupted airflow straight into theK&N XD air filters use a Deep Pile Design, Extra Fine Weave Grade Cotton and alternate geometries for added efficiency and capacity for off road conditions. This extra thick filtering medium provides the increased protection demanded by high dust conditions while continuing to provide the performance necessary to stay in the front of the pack. The XD Cotton medium was developed for the extreme conditions encountered by race teams in the Baja 1000.