LS-Based EFI Performance

FiTech's Retro LS Throttle Body System is a complete self-tuning injection system designed for LS-based engines, supporting 600 HP. The Retro LS is a complete throttle body kit, suitable for that junkyard 5.3 to a stroker 427. This system is ready-to-go with the needed wiring harness and sensors to get you on the road easily and faster than any system on the market today. This system gives your LS-based vehicle that old school carbureted look with the technology and reliability of modern EFI.