Painless Performance Pro Series Customizable Car Wiring Harness 25 Circuit Grommet Firewall Pass Through In Column Key GM 42500150BK Raised lip contains up to Size:X Large Raised lip contains up to a gallon of liquid Borla Cat Back and Axle back exhaust systems feature patented straight through and multi core technology designed to unleash hidden horsepower This Pro Series harness features a grommet style firewall pass through with the fuse block mounted inside the vehicle on or near the firewall Painless has taken one of the most difficult aspects of a vehicle project and made it simple by offering complete wiring harnesses that are basically plug and play