At HOTWIRE Auto, we specialize in helping make modern drive train swaps into classic Street Rods & Muscle Cars easy.  We provide the highest quality engine and transmission wiring harnesses and serve the aftermarket for modern GM, Chrysler and Ford fuel-injection systems. We hand-assemble our products using all new wire and OEM components to make sure that each swap looks and works great by combining custom style and attention to detail with factory fit and reliability.

Featured Harnesses & Components

GM HOT ROD STYLE HARNESSES

GM's LS V8's and new transmission models are excellent ways to re power your modified classic and we can help make the swap simple with one of our custom made, ready to go harnesses.

Find Your Harness

CHRYSLER HOT ROD STYLE HARNESSES

Chrysler's HEMI has been an icon for more than 60 years and its new versions keeps building its legacy. Let us help make re MOPowering your ride easy with a wiring harness that makes swaps a snap.

Find Your Harness

FORD HOT ROD STYLE HARNESSES

Ford's family of Mod Motors and its new Coyote 5.0 can help make any classic more potent and fun to drive. And we can make putting one into your classic as easy as if the factory had built them for your car in the first place.

Find Your Harness

COMPUTER PROGRAMMING

To get the best performance from a new engine and drive train you have to get the most out of the computers that control them which is one of our specialties. Find out how we can help tune your new combo to perfection.

Custom Programming

GET IT HERE!

Info About Using The WA580 (NAG-1) Transmission

Check It Out
Come See Us At The Shows!
See The Schedule

Questions About How We Can Help Build Your Dream Ride?

Let us know how we can help.
( you can leave a detailed message, the Message field has more room than shown )

Share by: