F8x M3/M4 S55 Catless Downpipes 2014+
Free up your exhaust with our Catless downpipes!
RK TUNES catless downpipes eliminate the heavy and restrictive catalytic converters in the factory exhaust system. By eliminating the catalytic converters, your turbos can breathe more efficiently which reduces back-pressure. This reduction in back-pressure creates a faster and more audible turbo spool, a deeper and aggressive exhaust note, and most importantly, a 10-30WHP increase depending on vehicle modifications. In order to prevent a Check Engine Light, an ECU retune or 02 sensor spacer is recommended.
E46 M3 S54 Velocity Stack Kit
First 5 sets at this discounted price !All kits come with our RK-Tunes Alpha N tune E46 M3 S54 Velocity stack kit-Billet CNC Aluminum Velocity Stacks w/set screws-Custom Alpha N...
F8x M3/M4 S55 Charge Pipe Kit 2014+
Our competitor kits come with just the 2 Upper Pipes, and we give an option to order just the top two. We also offer the lower post intercooler pipe separately....
F8x M3/M4 S55 Front Mount Air Intakes 2014+
Our RK-Tunes F8x M3/M4 Cold Air Intake places the air filters in the grill area allowing maximum flow with the coldest possible air. Our intakes help your engine breathe more...