I have a brand new never even removed from box except for pictures ls1 wiring harness and ecu from SSP Wiring. It is a new stand alone harness set up for speed density and t56 the computer is programmed set for start up vats and rear o2s removed. This is also they way to go for the th350/400 glide or any other non computer controlled auto trans. They even polished the ecu haha. These harnesses are exceptionally nice and well worth the little extra money over a stock old dirty used harness and ecu. Only asking $400 shipped for it all. Call or text 847 636 3552. Thanks, Tim

 

Sold!!!!