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. Our F80 M3 / F82 M4 Full Charge pipe kit is the only one on the market offering meth injection post intercooler and the only kit offering the charge pipe from the intercooler to the throttle body. Includes : Aluminum piping Flat black to retain an OEM look. OEM Fitment Reinforced Silicon couplers OEM style clamps New Throttle body Clip New Throttle body Oring 1/8" NPT Bung. Fits all F8x M3 / M4's with the S55 engine.