Harley Davidson

S&S Cycle - 50 State Slash-Cut Slip-On Mufflers fits '18-'22 Harley Softail Models - Guardian Black Features: Classic slash-cut styling Boost horsepower and torque SAE J2825 Sound Level Compliant S&S engineered high-flow cats perform as...

S&S Cycle - 50-State Brushed Stainless Steel Slip-On Muffler Features: Show quality brushed stainless finish Carbon fiber end cap and heat shield Removable dB reducer (J2825 compliant) 19% weight savings over stock muffler - US version Made...

S&S Cycle - 55mm Performance Manifold fits '17-'23 Harley M8 Models The S&S Cycle 55mm Performance Manifold for '17-'23 Harley M8 Models features a textured finish to enhance fuel dissipation and atomization, fits all 55 mm throttle bodies,...

S&S Cycle - 76cc High Compression Performance Cylinder Heads fits '84-'99 Evolution Big Twin Models - Black Powdercoat Great news: S&S heads are now available to be used with stock-style flat-top pistons! The kits are fully assembled and come...

S&S Cycle - Air Cleaners fits Harley Models fits '08-'17 Twin Cam - Electronic Throttle These S&S Cycle Air Cleaners feature original S&S teardrop air cleaner assemblies and are available in your choice of chrome or gloss black...

S&S Cycle - Air Stinger Stealth Air Cleaner Kit with Teardrop Cover fits '07-'20 Sportster Models The Air Stinger Stealth Air Cleaner Kit comes complete with a backing plate cover, a washable and re-usable filter element, and the necessary hardware...

S&S Cycle - Air Stinger Stealth Air Cleaner Kit with Teardrop Cover fits '08-'17 Twin Cam - Electronic Throttle The Air Stinger Stealth Air Cleaner Kit comes complete with a backing plate cover, a washable and re-usable filter element, and the...

S&S Cycle - Aluminum Hydraulic Cam Chain Tensioners Kit - fits '07-'17 Twin Cam, '06 Dyna Features: For use in stock 07-17 Twin Cam engines or 99-06 Twin Cam engines with a hydraulic upgrade cam plate like the S&S TC3bodies machined from 6061...

S&S Cycle - Billet Cam Plate fits  '17-'21 Harley M8 Models Features: Precision machined from billet aluminum Blue anodized finish Passage plugs are removeable for servicing Made in U.S.A Fitment 2020 Harley-Davidson Softail...

S&S Cycle - Black 4.375" Stroke 129" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power increase! It is...

S&S Cycle - Black 4.5" Stroke 132" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power increase! It is...

S&S Cycle - Black Granite 128" Big Bore Kit W/ Highlighted Cylinder Fins fits '17-'20 114" 117" M8 Engines This is a bolt-on kit that features the biggest cylinder bore possible with no machining of the crankcases necessary! It includes all of the...

S&S Cycle - Black Granite 4¼" Bore M8 Cylinders W/ Highlighted Cylinder Fins fits '17-'20 M8 Engines  These cylinders are bored slightly under nominal size and are not honed. Features Bolt on Cylinder Set For M8 Models Sold in...

S&S Cycle - Black Powdercoat 117" Big Bore Kit fits '07-'17 Twin Cam Engines (4.125" Bore, 4⅜" Stroke, 10.5:1 Comp. W/ Stock Heads) This Big Bore Kit produces outstanding outcomes with stock cylinder heads. It comes complete with cylinders, pistons,...

S&S Cycle - Black Powdercoat 95" Big Bore Kit fits '99-'06 Twin Cam Engines (3.875" Bore, 4" Stroke, 9.7:1 Comp. W/ Stock Heads) This Big Bore Kit produces outstanding outcomes with stock cylinder heads. It comes complete with cylinders, pistons,...

 S&S Cycle - Black Powdercoat Evolution-Style Aluminum Cylinders W/ Machined Fin Edges fits '84-'99 Evolution Big Twin Engines S&S Cycle's Evolution-Style Aluminum Cylinders are stock replacement cylinders featuring a 3½" bore with a...

S&S Cycle - Black/Highlighted 4.375" Stroke 129" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines  S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power...

S&S Cycle - Black/Highlighted 4.5" Stroke 132" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines  S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power...

S&S Cycle - Chrome Air Cleaner fits '99-'06 Twin Cam Models W/ E & G Series Carbs This S&S Cycle Air Cleaners features the original S&S teardrop air cleaner assembly and comes to you in a bright chrome finish. Features Include an...

S&S Cycle - Chrome Die-Cast Rocker Box fits '99-'17 Twin Cam Motors Features Positive O-ring seal ensures leak-free operation Include rocker boxes, gaskets and mounting bolts The assembler must supply rocker shafts and and rocker arms for all...

S&S Cycle - Chrome Tuned Induction Air Cleaner Kit fits '08-'16 Touring, '16-'17 Softail Models Air filters are the core element for pristine air flow in a performance engine, and S&S Cycle has created a kit that delivers unbeatable performance...

S&S Cycle - Grand National 50 State Slip-On Mufflers fits '18-'22 Harley M8 Softail Models - Chrome These mufflers feature a race-inspired design and improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately. The...

S&S Cycle - Grand National 50 State Slip-On Mufflers fits '18-'22 Harley M8 Softail Models - Guardian Black These mufflers feature a race-inspired design and improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately...

S&S Cycle - Grand National 50-State Slip-On Mufflers fits '18-'22 Harley M8 Softail Models - Chrome These mufflers feature a race-inspired design and improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately. The...

S&S Cycle - Grand National Race Slip-On Mufflers fits '18-'22 Harley M8 Softail Models - Chrome These mufflers feature a race-inspired design and improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately. The stock...

S&S Cycle - Grand National Race Slip-On Mufflers fits '18-'22 Harley Softail Models - Chrome These mufflers feature a race-inspired design and improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately. The stock...

S&S Cycle - Grand National Slip-On Muffler fits '15-'20 XG500/​750 Models This muffler delivers heightened horsepower and torque when it is used with a Stealth Air Cleaner Kit. It has a race-inspired sound and stainless steel baffle as well as a...

S&S Cycle - Grand National Slip-On Mufflers fits '08-'17 Harley Dyna Models - Guardian Black These mufflers feature a detachable dB reducer for back pressure and sound tuning. They have race-inspired Grand National end caps. The mufflers meet the...

S&S Cycle - Grand National Slip-On Mufflers fits '95-'17 Dyna Models - Chrome These mufflers feature a detachable dB reducer for back pressure and sound tuning. They have race-inspired Grand National end caps. The mufflers meet the J2825 levels for...

S&S Cycle - Grand National Slip-On Mufflers W/ Black End Caps fits '17-'21 Harley Touring Models - Black This muffler features a race-inspired Grand National end cap high-flow perforated baffle with a detachable dB reducer. It delivers an aggressive...

S&S Cycle - Grand National Slip-On Mufflers W/ Black End Caps fits '17-'21 Harley Touring Models - Chrome This muffler features a race-inspired Grand National end cap high-flow perforated baffle with a detachable dB reducer. It delivers an...

S&S Cycle - Guardian Black Diamondback 2-into-1 Race Only Exhaust System fits '17-'23 Touring Models This full stainless steel exhaust system comes with stainless steel header pipe heat shields. Its computer-aided design and precision bending...

S&S Cycle - Guardian Black Diamondback 2-into-1 State Exhaust System fits '17-'20 Touring Models This full stainless steel exhaust system comes with stainless steel header pipe heat shields. Its computer-aided design and precision bending delivers...

S&S Cycle - Hooligan Kits fits '00-'20 XL Models S&S Cycle's Hooligan Kits are bolt on big-bore kits that provide easy installation without any machining or rebalancing. The cams are .482" lift and 240° duration intake and 234° degree...

S&S Cycle - Lower Rocker Box Gasket Kit fits '99-'17 Twin Cam OEM Rocker Boxes Used on S&S Heads S&S's Lower Rocker Box Gasket Kit must be used when installing OEM stock rocker boxes on S&S heads. This kit comes with the lower rocker box...

S&S Cycle - MK45 Slip-On Mufflers W/ Chrome Thruster End Caps fits '17-'21 Harley Touring Models - Chrome This muffler utilizes a combination of stainless steel and fiberglass packing in order to produce a deep, performance tone and stronger...

S&S Cycle - Natural Finish Evolution-Style Aluminum Cylinders fits '84-'99 Evolution Big Twin Engines S&S Cycle's Evolution-Style Aluminum Cylinders are stock replacement cylinders featuring a 3½" bore with a cast-iron liner. Its finish...

S&S Cycle - Oil Change Kit W/ Black Oil Filter fits '17-'21 Harley M8 Models S&S Cycle's Oil Change Kit delivers regular viscosity and resists thermal breakdown and oxidation at elevated temperatures. It provides superior lubrication for...

S&S Cycle - Oil Pump fits '17-'21 M8 Water-Cooled Touring Models S&S Cycle's Oil Pump for '17-'21 M8 Water-Cooled Touring Models delivers a 20% flow increase on the supply side and a 52% flow increase on scavenge. There are independent scavenge...

S&S Cycle - Retro Top-End Conversion Kit for 3.625" Bore Cylinders fits '66-'84 Shovelhead Engines Your Shovelhead will achieve the ultimate blast-from-the-past appearance of a Panhead with this Retro Top-End Conversion Kit from S&S Cycle! It...