Gen II · Gen III · Gen IV
All GM Engines
Handcrafted in the USA: LS1, LS3, and LSX harness systems using new TXL and GXL synthetic low-resistance color-coded wire, crimped and soldered to every terminal. Navigate to your desired powerplant below.
LS1, LS3 & LSX Wiring Systems and Tuning
The finest LS1, LS3, and LSX harness systems money can buy. Handcrafted in the USA by Speed Scene Wiring with new TXL and GXL synthetic low-resistance color-coded wire. Every terminal is mechanically crimped with the correct tooling, then soldered. Uncompromising quality, second to none.
SSW LS1 G10 Wiring System — labeled connector layout
Why Speed Scene Wiring?
We simplify the entire process, making it easy to buy a new LS fuel injection wire harness. From cheap knock-off imitations to mass-produced systems that simply don't work, we help you narrow down the right choice. If you have questions about the LS powerplant you're about to install or the harness you're looking to invest in, contact SSW. We've stood behind what we sell since 1999.