FAST · New
FAST Kit LS Transplant EZ-EFI & LSX
MPN 302003L · Store SKU fst302003L
Supplier stock checked 11/7/2026, 1:17:30 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Bolt FAST EZ-EFI technology onto your LS engine with a FAST EZ-EFI Engine + Manifold Kit. Including our FAST EZ-EFI Fuel ECU and Multiport Harness, an LSXRT manifold, Big Mouth Throttle Body, billet fuel rails, Precision Flow fuel injectors, inline fuel pump and an XIM ignition control system, this is the most complete EFI induction solution for your LS project. Including our EZ-EFI, XIM Ignition Control, LSXRT Manifold, Big Mouth Throttle Body and inline fuel pump, this kit includes everything needed to bolt modern FAST EFI technology onto your LS engine and also control the ignition system. EZ-EFI Fuel + XIM + LSXRT Manifold + Big Mouth Throttle Body + Inline Pump Kit
Manufacturer fitment & guides
Check 302003L against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
