On K-swapped cars without heater cores and top mounted shifters, most people seem to pass the shifter cables somewhere through the firewall. Sometimes the existing hole for the heater core is used and sometimes people prefer to drill a new hole slightly lower on the firewall. Either way works fine but you are always left with some ugly gaps around the cables after installation. This is exactly why we designed a special grommet that eliminates these ugly gaps and protects the cable from the sharp edges of the hole. The K-Tuned Cable Grommet has a billet frame with a 7/16" thick rubber grommet in it. Simply drill 4 holes in the corners of the frame and fasten in place with the included hardware. Great for race cars and anywhere shifter cables are passed through a firewall.