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HPI Best Sellers

Shop High Performance Injectors’ most popular performance parts, including standalone wiring harnesses, throttle bodies, blow-off valves, Corvette upgrades, and engine-swap components.

HPI Race Engineering C5 Corvette transmission brace anti-wheel-hop differential brace

HPI Race Engineering C5 Corvette Transmission Mount Differential Anti-Wheel-Hop Brace

Save $390.99
HPI 03–07 LS Vortec standalone drive-by-wire wiring harness for 4L60E and 4L80E

HPI 03–07 LS Vortec Standalone Drive-By-Wire Wiring Harness for 4L60E 4.8 5.3 6.0

Save $310
HPI 1997–2006 LS1 standalone wiring harness drive-by-cable for 4L60E 4.8 5.3 6.0 Vortec

DRIVE BY CABLE DBC 1997-2006 LS1 STANDALONE WIRING HARNESS W/ 4L80E 4.8 5.3 6.0 VORTEC EV6 delphi

Save $340
HPI 60MM Open Style Race BOV Blow Off Valve – Big Red Style Race Valve

HPI 60MM Open Style Race BOV Blow Off Valve – Big Red Style Race Valve

Save $299
DRIVE BY CABLE DBC LS 1997-2006 STANDALONE WIRING HARNESS W/ 4L80E 4.8 5.3 6.0 5 wire maf delphi connectors

DRIVE BY CABLE DBC LS 1997-2006 STANDALONE WIRING HARNESS W/ 4L80E 4.8 5.3 6.0 5 wire maf delphi connectors

Save $340
Other: 1 Set of 2005-2013 C6 Corvette Headlight Replacement Lenses, Gaskets, and Sealant

Other: 1 Set of 2005-2013 C6 Corvette Headlight Replacement Lenses, Gaskets, and Sealant

Save $90
HPI 105mm Throttle Body Billet Aluminum Universal

HPI 105mm Throttle Body Billet Aluminum Universal

Save $210
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LSX to SBF Throttle Body Adapter LS1, 5.3, Ford, LS2, LS3, LS7 6.0, 6.2,

LSX to SBF Throttle Body Adapter LS1, 5.3, Ford, LS2, LS3, LS7 6.0, 6.2,

Save $25.99
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HPInjectors Snap Back Hat (multiple colors available)

HPInjectors Snap Back Hat (multiple colors available)

Save $20
Gen 2 Ford Coyote Standalone BRAIDED LOOM Wiring Harness for Manual or 6R80 Transmissions

Gen 2 Ford Coyote Standalone BRAIDED LOOM Wiring Harness for Manual or 6R80 Transmissions

Save $226
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LS 4 Bolt 102MM Billet Throttle Body

LS 4 Bolt 102MM Billet Throttle Body

Save $190
HPI 40MM Open Style Race BOV Blow Off Valve – Billet Aluminum | HPI

HPI 40MM Open Style Race BOV Blow Off Valve – Billet Aluminum | HPI

Save $260.95
Gen 1 Ford Coyote body BRAIDED LOOM Harness Manual Transmissions or for Mustang 6r80 2011-2014

Gen 1 Ford Coyote body BRAIDED LOOM Harness Manual Transmissions or for Mustang 6r80 2011-2014

Save $226
Gen 3 Ford Coyote Standalone BRAIDED LOOM Wiring Harness for Manual or 10R80 Transmissions

Gen 3 Ford Coyote Standalone BRAIDED LOOM Wiring Harness for Manual or 10R80 Transmissions

Save $300
Hemi Hellcat Standalone BRAIDED LOOM Wiring Harness (2015–2023) | TR6060 & Manual Swap Wiring

Hemi Hellcat Standalone BRAIDED LOOM Wiring Harness (2015–2023) | TR6060 & Manual Swap Wiring

Save $300
2015–2023 Hemi Hellcat Standalone BRAIDED LOOM Wiring Harness | 8HP Transmission Swap Harness

2015–2023 Hemi Hellcat Standalone BRAIDED LOOM Wiring Harness | 8HP Transmission Swap Harness

Save $326
2015-2023 Car Hemi Body Stand Alone BRAIDED LOOM Wire Harness 8HP Transmission

2015-2023 Car Hemi Body Stand Alone BRAIDED LOOM Wire Harness 8HP Transmission

Save $326
Gen 1 Ford Coyote body BRAIDED LOOM Harness for Manual or 6R80 transmission

Gen 1 Ford Coyote body BRAIDED LOOM Harness for Manual or 6R80 transmission
2015–2023 Hemi Stand Alone BRAIDED LOOM Wiring Harness – TR6060 Manual Swap Harness | HPI

2015–2023 Hemi Stand Alone BRAIDED LOOM Wiring Harness – TR6060 Manual Swap Harness | HPI

Save $300
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LS 4-Bolt 102MM Billet Throttle Body with Dual 3.5" Y Quick Seals | HPI

LS 4-Bolt 102MM Billet Throttle Body with Dual 3.5" Y Quick Seals | HPI

Save $427
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LS 4-Bolt 102MM Billet Throttle Body with 90 Degree 4" Elbow | HPI

LS 4-Bolt 102MM Billet Throttle Body with 90 Degree 4" Elbow | HPI

Save $450
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HPI Low Profile LS7 Billet Aluminum Intake Manifold

HPI Low Profile LS7 Billet Aluminum Intake Manifold

Save $2,050
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HPI 105mm Throttle Body Billet aluminum LSX LS3 LS7 LS1 5.3 6.0 6.2

HPI 105mm Throttle Body Billet aluminum LSX LS3 LS7 LS1 5.3 6.0 6.2

Save $370
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Co2 Single Waste Gate Kit

Co2 Single Waste Gate Kit

Save $101