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Best selling products

Holley 554-125 Camshaft Sensor w/Flying Magnet Target 12mmx1
Holley 554-125 Camshaft Sensor w/Flying Magnet Target 12mmx1

Crankshaft Position Sensors

$199.95
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Holley 554-122 8 Channel Coil Driver Kit
Holley 554-122 8 Channel Coil Driver Kit

Ignition Coil Drivers

$331.95
Holley 554-117 Crank Sensor w/Pigtail
Holley 554-117 Crank Sensor w/Pigtail

Crankshaft Position Sensors

$173.95
Holley 554-121 Air Temp Sensor Terminator Series
Holley 554-121 Air Temp Sensor Terminator Series

Coolant Temperature Sensors

$33.27
Holley 554-115
Holley 554-115 Solenoid Driver Module Water/Methanol 2-Channel

Water/Methanol Injection System Controllers

$91.95
Holley 554-113 HP Series EFI ECU Only
Holley 554-113 HP Series EFI ECU Only

Engine Management Systems

$2,099.95
Holley 554-111 Nitrous Solenoid Driver
Holley 554-111 Nitrous Solenoid Driver

Nitrous Oxide Controller Components

$145.95
Holley 554-103 Pressure Sensor 200psi
Holley 554-103 Pressure Sensor 200psi

Fuel Injection System Components

$225.95
Holley 554-104 Pressure Transducer - 1600psi
Holley 554-104 Pressure Transducer - 1600psi

Fuel Injection System Components

$225.95
Holley 553-115 Sniper EFI 3.5 Touch Screen LCD Controller
Holley 553-115 Sniper EFI 3.5 Touch Screen LCD Controller

Fuel Injection System Components

$419.95
Holley 554-101 Bosch O2 Sensor
Holley 554-101 Bosch O2 Sensor

Oxygen Sensors

$207.95
Holley 553-109
Holley 553-109 Holley Digital Dash - Stand Along Design.

Fuel Injection System Components

$1,749.95
Holley 553-108
Holley 553-108 Holley EFI 3.5in LCD Touch Screen Controller

Engine Management Systems

$419.95
HLY550-877 Sniper EFI
Holley 550-877 Sniper EFI 4150 Kit Black Finish

Fuel Injection Systems

$2,249.95
HLY550-872 Sniper EFI
Holley 550-872 Sniper EFI Stealth 4150 Gold Finish

Fuel Injection Systems

$1,649.95
HLY550-871 Sniper EFI
Holley 550-871 Sniper EFI Stealth 4150 Black

Fuel Injection Systems

$1,649.95
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HLY550-869K Sniper EFI
Holley 550-869K Sniper EFI Quadrajet Master Kit - Gold

Fuel Injection Systems

$2,099.95
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HLY550-858K Sniper EFI
Holley 550-858K Sniper EFI BBD Jeep CJ Master Kit Shiny Finish

Fuel Injection Systems

$1,799.95
HLY550-858 Sniper EFI
Holley 550-858 Sniper EFI BBD Jeep CJ Kit Shiny Finish

Fuel Injection Systems

$1,449.95
HLY550-869 Sniper EFI
Holley 550-869 Sniper EFI Quadrajet Gold

Fuel Injection Systems

$1,799.95
HLY550-842 Sniper EFI
Holley 550-842 Sniper EFI Stealth 4500 Black

Fuel Injection Systems

$2,299.95
HLY550-614 Terminator
Holley 550-614 Terminator GM LS MP-EFI 97-07 Trk /4.8/5.3/6.0

Fuel Injection Systems

$2,949.95
HLY550-841 Sniper EFI
Holley 550-841 Sniper EFI Stealth 4500 Polished

Fuel Injection Systems

$2,299.95
HLY550-606N
Holley 550-606N HP ECU & Harness - Ford MPFI NTK

Engine Management Systems

$2,999.95
HLY550-613 Terminator
Holley 550-613 Terminator GM LS MP-EFI 07-Up LS3/4.8/5.3/6.0

Fuel Injection Systems

$4,649.95
HLY550-607
Holley HP 550-607 ECU & Wiring Harness

Engine Management Systems

$2,849.95
HLY550-606
Holley 550-606 Ford MPFI HP ECU and Wire Harness Kit

Engine Management Systems

$2,749.95
HLY550-605
Holley 550-605 ECU & Wire Harness Unterminated

Engine Management Systems

$2,749.95
HLY550-604N
Holley 550-604N HP ECU & Harness MPFI - NTK

Engine Management Systems

$2,999.95
HLY550-604
Holley 550-604 ECU & Harness MPFI Kit

Engine Management Systems

$2,749.95
HLY550-603
Holley 550-603 ECU & Wiring Harness LS2

Engine Management Systems

$2,849.95
HLY550-602N
Holley 550-602N HP ECU & Harness LS1/LS6 NTK

Engine Management Systems

$3,099.95
HLY550-601
Holley 550-601 ECU & Harness Kit - GM TPI/Holley Stealth Ram

Engine Management Systems

$2,749.95
HLY550-602
Holley HP 550-602 ECU & Wiring Harness

Engine Management Systems

$2,849.95
HLY550-501
Holley 550-501 Univ HP EFI Retrofit Engine Management System

Fuel Injection Systems

$4,999.95
Holley 543-29
Holley 543-29 Throttle Position Sensor

Throttle Position Sensors

$126.95
Holley 543-112
Holley 543-112 Throttle Position Sensor

Throttle Position Sensors

$139.95
Holley 543-3
Holley 543-3 Throttle Position Sensor

Throttle Position Sensors

$103.95
Holley 543-105
Holley 543-105 IAC Motor

Idle Air Controls

$93.25
Holley 538-24
Holley 538-24 Map Sensor - Commander 950

MAP Sensors

$145.95
Holley 543-111
Holley 543-111 TPS Sensor for 112-578 Throttle Body

Throttle Position Sensors

$93.35
Holley 534-49
Holley 534-49 O2 Sensor Weld Ring

Weld-In Bungs and Fittings

$16.81
Holley 534-244
Holley 534-244 Billet Fuel Rail Kit GM LS Trucks w/OE Intakes

Fuel Rails

$242.95
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Holley 534-224
Holley 534-224 Fuel Rail Kit - LT1 Hi-Ram Intake

Fuel Rails

$311.95
Holley 534-211
Holley 534-211 Fuel Rail Adapter Kit Quick Connect GM Rail

Fuel Line Adapter Fittings

$42.11
Holley 534-210
Holley 534-210 Billet Alm Fuel Rail Kit GM LS Factory Intakes

Fuel Rails

$449.95
Holley 534-209
Holley 534-209 Billet Alm. Fuel Rails - GM LS Factory Intakes

Fuel Rails

$254.95
Holley 534-203
Holley 534-203 Hi-Ram Fuel Rail Kit LS3/L92/LS7

Fuel Rails

$318.95