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PAINLESS PERFORMANCE EFI

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1998-2004 GM LS1/LS6 EFI Harness
$549.00
$549.00
Engine: 5.7L LS1 / LS6 w/ Cable Throttle BodyTrans.: 4L60E, 4L65E, 4L80E, T-56 This harness is standalone and is not intended to replace the OEM engine wiring.  Standalone harnesses are intended to...
2008+ Gen IV LS3 EFI Harness - Throttle By Wire
$699.00
$699.00
Engine: LS3Trans.: 4L65E This harness is standalone and is not intended to replace the OEM engine wiring.  Standalone harnesses are intended to run the designated engine & transmission only, ge...
2007-2012 GM Gen IV 4.8-6.2L EFI Harness - Throttle by Wire
$749.00
$749.00
Engine: 4.8, 5.3, 6.0, 6.2LTrans.: 4L65E This harness is standalone and is not intended to replace the OEM engine wiring.  Standalone harnesses are intended to run the designated engine & trans...
1999-2006 GM Gen III 4.8/5.3/6.0L EFI Harness Extra Length - Mechanical TB P/N 60218
$699.99
$699.99
Engine: 4.8L, 5.3L, 6.0L w/ Mechanical Throttle BodyTrans.: 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual This harness is standalone and is not intended to replace the OEM engine wiring.  Standalone...
2003-2006 GM Gen III 4.8/5.3/6.0L EFI Harness - Throttle by Wire
$699.99
$699.99
Engine: 4.8L, 5.3L, 6.0L w/ Throttle By WireTrans.: 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual This harness is standalone and is not intended to replace the OEM engine wiring.  Standalone harness...
1999-2006 GM Gen III 4.8/5.3/6.0L EFI Harness - Mechanical TB
$579.99
$579.99
Engine: 4.8L, 5.3L, 6.0L w/ Mechanical Throttle BodyTrans.: 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual This harness is standalone and is not intended to replace the OEM engine wiring.  Standalone...