12007L LS1 to LS3 MAP sensor adapter harness

12080 LSx DIY harness stand alone conversion kit

^$219

1988-1998 C/K 1500-3500 OBS LS Swap 2 wire to 3 wire Temp Sensor conversion harness #12101W

^$29.99

12010 Coil power tap Flex fuel harness

^$49.99

Fuse block Stand Aluminum

^$29.99

12034 LS2 LS3 LS7 5.2 6.0 Ignition Coil Harness Set for Relocation Brackets 8 coils

^$79.98

12035 LS2 LS3 LS7 5.2 6.0 Ignition Coil Harness Set for 8 coils

^$99.99

12050 Gen V Throttle Body Extension Harness LTx

^$39.99

12051 Gen V LT1/LT4 TMAP conversion Harness

^$149.99

12006 LS1/LS2 MAP extension harness

^$34.99

12031 Gen III MAF IAT Breakout harness

^$49.99

12041 Gen IV MAF IAT breakout harness

^$49.99

12009 TCASE EXTENSION HARNESS

^$32.99

12007L LS1 to LS3 MAP sensor adapter harness

^$34.99

12007S LS1 to LS3 MAP sensor adapter harness

^$32.99

12040 Gen IV Throttle body extension harness

^$34.99