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This listing is for a brand new 1JZGTE engine harness swap into the 93-98 MkIV Supra. It is in stock, in the box, and ready to ship! NO WAITING LIST! These wiring harnesses are built using new wire, new OEM terminals, and new OEM connector housings. Designed for use with the JDM ECU (High impedance injectors, MAP and IAT sensor, no MAF wiring). The only used connectors on the harness are the plugs that connect to the body harness which are taken from original core harnesses.
Available for auto or manual transmission (auto is $200 extra). There is a core charge of $300 for the original MkIV 2JZ-GE wiring harness. You may send in your core harness ahead of time to avoid the $300 core charge, or we will refund the core charge to you once you have returned the original engine harness to us. (Please note that core harnesses must be returned within 30 days of receipt of your new harness in order to receive the refund!)
We also provide a tach modification service for vehicles using a non-turbo gauge cluster. You must send in your gauge cluster for us to do the modification, which costs $75.
Several looming options are available including braided sleeving and extreme-duty heatshrink looming for the ultimate in harness protection and a clean show-car look (custom looming options add an additional one week lead time)
These harnesses aren't just built and shipped it off. Every harness we build is laid out on our tried-and-true harness jigs to ensure a perfect fit every single time. Every detail is checked to make sure that your wiring harness is built to our standards. We don't ever send a harness to a customer unless we would happily install that on our own engine swap for our personal car. Then not one, but two engine swap experts double-check every single terminal, connector, and wire on your harness to make sure every circuit has perfect continuity. While we all know that mistakes aren't impossible, we ship every one of our harnesses with full confidence that you, our customer, will never need to use our unbeatable LIFETIME warranty on these.