You have to send in your harness. Full service shop located in Ontario, California.Will be ready to run right out of the box. We remove all bulk wiring and only leave what YOUR Engine Requires. Simple 3 wire hookup and your ready to run! 4 fuse and 2 relay box is small and easy to hide. 100% brand new wiring loom!
Will remove the automatic wiring if going to standard or non electric transmission. Included and installed obd2 and check engine light with 3 feet of wiring. EVERY connection is heatshrunk and soldered.And 04 Gto harness's. The item "LS1, 5.3L/6.0L Engine Wiring Harness Modification" is in sale since Saturday, October 24, 2015. This item is in the category "eBay Motors\Parts & Accessories\Services & Installation\Other". The seller is "coolmike222" and is located in Ontario, California. This item can be shipped to United States.