Atomic EFI LS Master Kit LS7
InfoVehicle Info Needed
MSD IGNITIONPART NUMBER: 121-2960

Atomic EFI LS Master Kit LS7

$2,42699
ShippingShips on 10/23/2026
Lowest PriceLowest Price Guarantee

Master Kits
    Atomic EFI LS Master Kit
  • LS7

  • Accepts Forced Induction
  • Advance Or Retard Ignition Timing
  • Adjustable Rev Limiter For Over-Rev Protection
  • Built In Two Step

MSD Atomic Electronic Fuel Injection (EFI) LS Master Kits meet your LS EFI needs by containing everything needed to complete your LS swap (fuel pump, hoses and injectors not included). This new, innovative technology simplifies LS engine swaps. Each kit is designed for a specific engine and includes integrated fuel rails, brackets, hardware, power module, handheld monitor, WBO2 sensor kit, crossover fuel line, injector retainers and harnesses.

Installation Kits complement the LS2/LS3 Master Kit by providing necessary brackets & injector connectors to complete LS1/LS6 or LS Truck Kit installation.

Show More

Features:

  • Easy Setup
  • No Laptop
  • Self Tuning
  • Integrated fuel rail and ECU significantly reduce the amount of wire
  • Improves the aesthetics of the engine bay with less wires and NO ECU to mount
  • Compatible with return or return-less fuel systems
  • Automatically recognizes 24 or 58 crank trigger wheels
  • Kits available for LS1/LS6, LS2/LS3, and LS7

    Note: LS2/LS3/LS7 and Early Model LS Truck Kits are not legal for sale or use on pollution-controlled vehicles.

    JEGS Easy Kits are designed by JEGS professionals to help you get all the performance parts you need.

Part TypeFuel Injection System
Product LineMSD Atomic EFI LS Master Kits
BrandMSD IGNITION
Package Height5.7
Package Width17.0
Package Length21.7
Weight14.76 PG
Part CategoryPerformance Parts
Wiring Harness IncludedYes
Iat Sensor IncludedNo
Fuel RateOEM
Fuel Pump IncludedNo
Throttle Body IncludedNo
Fuel Pressure Regulator IncludedNo
QuantitySold as a kit
Cylinder Head TypeStandard
Injectors IncludedNo
Tps Sensor IncludedNo
Fuel Rails IncludedYes
Intake Manifold IncludedNo
Engine Make/SizeChevy LS7
EgrWithout EGR
Ecm IncludedYes
Calibration Module IncludedYes
Oxygen Sensor IncludedYes
Distributor IncludedNo
Injection StyleMulti-port
Iac Motor IncludedNo
Map Sensor IncludedNo
Vendor Part Number2960
Package Qty1
Package TypeEA
No Questions
No Reviews

Items You Need

A1000 EFI Fuel System Includes: A1000 Fuel Pump

AEROMOTIVE

A1000 EFI Fuel System Includes: A1000 Fuel Pump

Part Number : 027-17125
$3,18568
Fuel Stabilizer 15oz Bottle

LUCAS OIL

Fuel Stabilizer 15oz Bottle

Part Number : 639-10302
$1128

EASY KITS

Atomic EFI Kit with Aeromotive Fuel Pump LS7 Includes:

MSD IGNITION

Atomic EFI Kit with Aeromotive Fuel Pump LS7 Includes:

Part Number : 121-2960K1
$3,32254
Some parts are not legal for use in California or other states with similar laws / regulations
p65 warning
Your Cart

Your shopping cart is empty!