Painless Fuel Injection Wiring Harnesses for maximum power with exceptional drivability nothing beats electronic fuel injection. And the easiest way to install a modern fuel injected engine is with one of our proven F.I. engine wiring harness kits. Painless engineers have worked out all of the connection and routing problems so all you have to do is follow the straight forward instructions for a painless installation. Like all Painless wiring harnesses, these fuel injection harnesses feature our exclusive TXL high temp wire that is color coded and labeled with each application for ease of installation.

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Painless Performance

Painless Wiring 1990-92 GM TPI w/ Speed Density

Part #: 60103

GM 90-92 TPI with speed density For use with TPI systems using a MAP sensor or Speed Density System on GM 5.0L and 5.7L V8s. Requires the use of either a Painless computer chip or VATS module.

Painless Wiring 1996-99 GM Gen3 5.0L/5.7L Vortec Engine

Part #: 60212

GM GEN 3 VORTEC For installations of 1996 - 1999 Vortec 5.0L and 5.7L V8 engines

Painless Wiring 1999-Later 4.8/5.3/6.0L Vortec Engines

Part #: 60217

1999 and later Vortec V6 and V8 engines. 4.8L, 5.3L, 6.0L.

Painless Wiring 1994-95 LT V8 Engines

Part #: 60502

1994-95 LT1 V8 engines into vehicles without a keyed Vehicle Anti-Theft System (VATS)

Painless Wiring 1986-95 Ford Mustang 5.0L V8 Engine

Part #: 60510

1986 - 1995 Ford MUSTANG 5.0L V8 Fuel Injection Wiring Harness. 1994-95 must use 86-93 Distributor ECM, MAF, and modify TPS and VSS Wiring.Standard; ECM/PCM Service #s M-12071-G302(A) Or M-12071-F302(M); Requires VS Sensor For PN[E3AZ-9E731-A]