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H-D ENGINE PERFORMANCE MODSOur Go-To High Performance Parts Picks For Harley

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Engine Performance Mods for HD

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Bike Specific

Feuling HP+ Oiling System For Harley

$799^.⁹⁵ $999^.⁹⁵

Bike Specific

S&S TC3 Cam Plate For Harley Twin Cam

$338^.³⁶

$375.95

10% savings

Bike Specific

S&S 883 To 1200 Conversion Kit For Harley Sportster 1986-2021

$771^.²⁶

$856.95

10% savings

Bike Specific

S&S Power Package For Harley Milwaukee Eight

$2,159^.⁹⁶ $2,736^.⁸⁶

$2,699.95 $3,040.95

Sale 20% Off!

Bike Specific

S&S Complete Pushrod And Tube Kit For Harley

$181^.⁷⁶ $251^.⁹⁶

$201.95 $241.95

10% savings

Bike Specific

S&S 465 Cam Kit For Harley Milwaukee Eight 2017-2021

$183^.⁵⁶ $367^.¹⁷

$203.95 $407.95

10% savings

Bike Specific

S&S 124" Big Bore Kit For Harley 107" Milwaukee Eight 2017-2021

$1,061^.⁰⁶

$1,178.95

10% savings

Bike Specific

Feuling 465 Reaper Camshaft For Harley Milwaukee Eight 2017-2021

$269^.⁹⁵

Bike Specific

S&S 475 Cam Kit For Harley Milwaukee Eight 2017-2021

$183^.⁵⁶ $367^.¹⁷

$203.95 $407.95

10% savings

Bike Specific

S&S 128" Big Bore Kit For Harley 114" Milwaukee Eight 2017-2021

$1,061^.⁰⁶

$1,178.95

10% savings

Bike Specific

S&S 550 Cam Kit For Harley Milwaukee Eight 2017-2021

$183^.⁵⁶ $367^.¹⁷

$203.95 $407.95

10% savings

Bike Specific

S&S Tappet Cuffs For Harley Milwaukee Eight 2017-2021

$59^.⁹⁶

$65.95

9% savings

Bike Specific

Feuling 508 Race Series Cam Chest Kit For Harley

$1,995^.⁹⁵

Bike Specific

S&S Hooligan Big Bore Cam Kit For Harley Sportster

$1,285^.¹⁶

$1,427.95

10% savings

Bike Specific

S&S Mini Teardrop Stealth Air Cleaner Kit For Harley

$280^.⁷⁶ $289^.⁷⁶

$311.95 $321.95

10% savings

Bike Specific

S&S Stealth Air Cleaner Kit For Harley EFI

$121^.⁴⁶ $154^.⁷⁶

$134.95 $171.95

10% savings

Bike Specific

S&S Teardrop Air Cleaner Kit For Harley EFI

$237^.⁵⁶ $289^.⁷⁶

$263.95 $314.95

10% savings

Bike Specific

S&S Grand National Slip-On Muffler For Harley

$269^.⁹⁶ $494^.⁹⁶

$299.95 $549.95

10% savings

Bike Specific

S&S Super Stock Cylinder Heads For Harley Twin Cam

$1,238^.³⁶

$1,375.95

10% savings

Bike Specific

S&S Super E Carburetor Kit For Harley

$588^.⁵⁶

$653.95

10% savings

Bike Specific

Feuling Race Series Short Travel Lifters For Harley

$289^.⁹⁵

Bike Specific

S&S Oil Filter For Harley

$14^.³⁶ $17^.⁰⁶

$15.95

10% savings

Bike Specific

S&S Cycle Synthetic Oil Change Kit For Harley

$65^.⁶⁶ $79^.¹⁶

$72.95 $87.95

10% savings

Bike Specific

S&S Power Tune Dual Header System For Harley Touring

$494^.⁹⁶ $584^.⁹⁶

$549.95

10% savings

Bike Specific

S&S 585 Cam Kit For Harley Twin Cam

$317^.⁶⁶ $732^.⁵⁷

$352.95

10% savings

Bike Specific

S&S Teardrop Stealth Air Cleaner Kit For Harley EFI

$274^.⁴⁶ $422^.⁹⁶

$304.95 $321.95

10% savings

Bike Specific

S&S Hydraulic Lifters For Harley

$127^.⁷⁶ $299^.⁶⁶

$141.95 $311.95

10% savings

Bike Specific

S&S Quickee Pushrods For Harley

$154^.⁷⁶ $164^.⁶⁶

$171.95 $182.95

10% savings

Bike Specific

S&S Single Bore Tuned Induction Kit For Harley EFI

$482^.³⁶ $578^.⁶⁶

$535.95 $642.95

10% savings

Bike Specific

S&S 510 Cam Kit For Harley Twin Cam

$317^.⁶⁶ $732^.⁵⁷

$352.95

10% savings

Bike Specific

James Rocker Box Gasket Kit For Harley

$33^.²⁵ $62^.⁰⁵

$36.95 $68.95

10% savings

Bike Specific

S&S 4.5" MK45 Thruster Slip-On Mufflers For Harley Touring

$629^.⁹⁶ $692^.⁹⁶

$699.95

10% savings

Bike Specific

S&S Teardrop Air Cleaner Kit For Harley CV

$242^.⁹⁶ $255^.⁵⁶

$269.95

10% savings

Bike Specific

S&S TC3 Oil Pump Cam Support Plate Kit For Harley

$651^.⁵⁶

$723.95

10% savings

Bike Specific

Feuling HP+ 465 Camchest Kit For Harley

$1,695^.⁹⁵

Bike Specific

Accel Solid State Voltage Regulator For Harley

$136^.⁹⁵ $335^.⁹⁵

Bike Specific

S&S Cylinders For Harley

$627^.²⁶

$696.95

10% savings

Bike Specific

S&S Crankcase Breather Valve For Harley Twin Cam

$116^.⁹⁶ $120^.⁵⁶

$129.95 $133.95

10% savings

Bike Specific

Feuling Vented Dipstick For Harley

$279^.⁹⁵

Bike Specific

S&S Stealth Air Cleaner Kit For Harley CV

$145^.⁷⁶ $154^.⁷⁶

$161.95 $171.95

10% savings

Bike Specific

Feuling 525 Cam Kit For Harley Twin Cam

$359^.⁹⁵

Bike Specific

Feuling HP+ Hydraulic Lifters For Harley

$169^.⁹⁵ $289^.⁹⁵

Bike Specific

S&S 583 Cam Kit For Harley Twin Cam

$317^.⁶⁶ $732^.⁵⁷

$352.95

10% savings

Bike Specific

Feuling HP+ 574 Camchest Kit For Harley

$1,595^.⁹⁵

Bike Specific

S&S Teardrop Air Cleaner Kit For Super E&G Carburetors

$242^.⁹⁶

$269.95

10% savings

Bike Specific

S&S 585 Easy Start Cam Kit For Harley Twin Cam

$413^.⁰⁶ $826^.¹⁷

$458.95

10% savings

Bike Specific

Feuling 12 Point External Engine Hardware Kit For Harley

$199^.⁹⁵ $369^.⁹⁵

Bike Specific

Drag Specialties Pushrod Tube Cover Kit For Harley

$79^.⁹⁵ $95^.⁹⁵

Bike Specific

S&S Intake Manifold For Harley Shovelhead With S&S Carb

$88^.¹⁶

$97.95

10% savings

Bike Specific

S&S 4.5" MK45 Tracer Slip-On Mufflers For Harley Touring

$629^.⁹⁶ $692^.⁹⁶

$699.95

10% savings

Bike Specific

S&S Slash Cut Slip-On Mufflers For Harley Dyna

$269^.⁹⁶ $292^.⁴⁶

$299.95

10% savings

Bike Specific

S&S 551 Cam Kit For Harley Twin Cam

$317^.⁶⁶ $732^.⁵⁷

$352.95

10% savings

Bike Specific

S&S Adjustable Chromoly Pushrods For Harley

$109^.⁷⁶ $112^.⁴⁶

$121.95 $124.95

10% savings

Bike Specific

S&S 583 Easy Start Cam Kit For Harley Twin Cam

$413^.⁰⁶ $826^.¹⁷

$458.95

10% savings

Bike Specific

Feuling HP+ 525 Camchest Kit For Harley

$1,595^.⁹⁵

Bike Specific

S&S El Dorado Dual Exhaust With Thruster Mufflers For Harley Touring

$1,125^.⁰⁰ $1,237^.⁵⁰

$1,250.00

10% savings

Bike Specific

S&S 4" Slash Down Slip-On Mufflers For Harley Touring

$413^.⁹⁶ $449^.⁹⁶

$459.95

10% savings

Bike Specific

S&S 570 Cam Kit For Harley Twin Cam

$317^.⁶⁶ $732^.⁵⁷

$352.95

10% savings

Bike Specific

James Cam Chest Gasket Kit For Harley

$19^.⁷⁵ $37^.⁷⁵

$21.95 $41.95

10% savings

Bike Specific

S&S Valve Spring Kits For Harley

$121^.⁴⁶ $275^.³⁶

$134.95 $305.95

10% savings

Bike Specific

Feuling HP+ 543 Camchest Kit For Harley

$1,595^.⁹⁵

Bike Specific

S&S 551 Easy Start Cam Kit For Harley Twin Cam

$413^.⁰⁶ $826^.¹⁷

$458.95

10% savings

Bike Specific

S&S 640 Cam Kit For Harley Twin Cam

$732^.⁵⁶

$813.95

10% savings

Bike Specific

Feuling HP+ 405 Camchest Kit For Harley

$1,695^.⁹⁵

Bike Specific

S&S Inner Primary Bearing Race For Harley

$57^.⁵⁶

$63.95

10% savings

Bike Specific

S&S El Dorado Dual Exhaust With Tracer Mufflers For Harley Touring

$1,125^.⁰⁰ $1,237^.⁵⁰

$1,250.00 $1,349.95

10% savings

Bike Specific

Arlen Ness 10-Gauge Pushrod Covers For Harley

$179^.⁹⁵ $179^.⁹⁶

$199.95

10% savings

Bike Specific

Feuling OE+ Oil Pump For Harley

$239^.⁹⁵ $339^.⁹⁵

Bike Specific

S&S H-Grind Cams For Harley Big Twin

$192^.⁵⁶

$213.95

10% savings

Bike Specific

Feuling HP+ Oil Pump For Harley

$399^.⁹⁵ $429^.⁹⁵

Bike Specific

S&S 570 Easy Start Cam Kit For Harley Twin Cam

$413^.⁰⁶ $826^.¹⁷

$458.95

10% savings

Bike Specific

S&S Oil Pump Kit For Harley Big Twin

$459^.⁸⁶ $482^.³⁶

$510.95 $535.95

10% savings

Bike Specific

Feuling Race Series Hydraulic Lifters For Harley

$269^.⁹⁵ $289^.⁹⁵

Bike Specific

S&S TC3 Oil Pump For Harley Twin Cam

$386^.⁰⁶

$428.95

10% savings

Bike Specific

Feuling OE+ Oiling System For Harley

$499^.⁹⁵

Bike Specific

S&S Stealth Air Cleaner Cover Adapter Kit For Harley Touring

$49^.⁴⁶

$54.95

10% savings

Bike Specific

Arlen Ness 10-Gauge Rocker Box Top Covers For Harley

$400^.⁴⁵ $584^.⁹⁶

$444.95 $649.95

10% savings

Bike Specific

Feuling OE+ Cam Plate For Harley

$259^.⁹⁵ $279^.⁹⁵

Bike Specific

S&S 106" Big Bore Kit For Harley Big Twin 2007-2017

$962^.⁰⁶

$1,068.95

10% savings

Bike Specific

S&S 1250 Big Bore Kit For Harley Sportster 1986-2021

$771^.²⁶

$856.95

10% savings

Bike Specific

S&S 98" Big Bore Kit For Harley Big Twin 1999-2006

$1,064^.⁶⁶

$1,182.95

10% savings

Bike Specific

S&S 585CEZ Easy Start Camchest Kit For Harley Twin Cam 2006-2017

$1,687^.⁴⁶

$1,874.95

10% savings

Bike Specific

S&S HP103 Cam Kit For Harley Twin Cam 2007-2017

$317^.⁶⁶ $740^.⁶⁷

$352.95 $822.95

10% savings

Bike Specific

Vance & Hines High Performance .575 Cams For Harley Twin Cam 2006-2017

$429^.⁹⁹

Bike Specific

S&S Hydraulic Cam Chain Tensioner Kit For Harley Twin Cam 2006-2017

$135^.⁸⁶

$150.95

10% savings

Bike Specific

S&S 509 Cam Kit For Harley Twin Cam 1999-2006

$333^.⁸⁶ $769^.⁴⁷

$370.95 $854.95

10% savings

Bike Specific

Feuling OE+ Hydraulic Cam Chain Tensioner Conversion Kit For Harley 2001-2006

$729^.⁹⁵

Bike Specific

S&S 97" Big Bore Kit For Harley Big Twin 1999-2006

$962^.⁰⁶

$1,068.95

10% savings

Bike Specific

Feuling 574 Cam Kit For Harley Twin Cam 2006-2017

$359^.⁹⁵

Bike Specific

S&S MR103 Easy Start Cam Kit For Harley Twin Cam 2006-2017

$413^.⁰⁶ $826^.¹⁷

$458.95 $917.95

10% savings

Bike Specific

S&S Super Stock Cylinder Heads For Harley Big Twin 1984-1999

$1,053^.⁸⁶ $1,115^.⁰⁶

$1,170.95 $1,238.95

10% savings

Bike Specific

Accel Stealth Super Coil For Harley 2001-2017

$301^.⁹⁵

Bike Specific

Accel EFI Super Coil For Harley Sportster 2007-2021

$183^.⁹⁵

Bike Specific

Accel Stealth Super Coil For Harley Sportster 2007-2021

$365^.⁹⁵

Bike Specific

S&S Cylinder Heads For Harley Big Twin Evo 1984-1999

$1,106^.⁹⁶ $1,170^.⁸⁶

$1,229.95 $1,300.95

10% savings

Bike Specific

S&S HI-4N Ignition & Coil Kit For Harley 1984-1999

$445^.⁴⁶

$494.95

10% savings

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