Engine and Exhaust

The Feuling Bolt Dress Up 22 Piece Kit: Feuling® Dress-up fastener kits for Twin Cam® engines Quality 12-point hardened stainless steel bolts with a SHOW corrosion-resistant finish Feature precision rolled threads for optimum engagement, to...

The Vance & Hines Upsweep 2-into-1 Exhaust System: Sculpted collector design covers the heart of this dyno tuned 2-into-1 Delivers street focused power and improved cornering clearance CNC machined billet end cap Sculpted collector heat shield ...

The XR Trackster Rocker Box Covers Make that Evolution Sportster look like a XR750 flat track racer Manufactured in die cast aluminum with CNC milled gasket surface Mounts in place of stock rocker box cover using stock hardware and gaskets; not included...

The EMD Sherman Rocker Box Covers: Cool, rigid and old-fashioned industrial style with class offered as a bolt-on upgrade Real alternative to the "billet" trend; these add soul and charisma Manufactured in die-cast aluminum with CNC milled gasket...

Bassani Firepower Series Exhaust: Features 16-gauge steel construction throughout 13/4" headpipes with 21/2" muffler bodies Includes mounting bracket and hardware Select styles feature billet end caps that can be rotated 90° as noted Heat shields...

Bassani Radial Sweeper Exhaust: Performance stepped headers with radial rear section Fabricated from 16-gauge double-wall steel Direct bolt-on design for easy installation Available with show-chrome or temp black finish Made in the U.S.A...

Bassani Radial Sweeper Exhaust: Performance stepped headers with radial rear section Fabricated from 16-gauge double-wall steel Direct bolt-on design for easy installation Available with show-chrome or temp black finish Made in the U.S.A. NOTE: Will...

Rebuilding the heads on your Shovelhead? Use the headbolt washer kits from Colony Motorcycle Products. They measure 13/32 X 11/16 X 1/32. They are accurately machined from high strength steel and hardened to prevent stretching. These headbolt washers...

Colony cylinder head bolt set with a chrome finish. Fits: FXST 1985-1991 XL 1986-1992 FLST 1986-1991 FLT 1985-1991 FXR 1985-1991 UOM: 8 - SET

V-Twin's 1200cc XL conversion cylinder and piston set includes 2 black finished with milled edge fin cylinders. Cylinders have fitted Wiseco moly 9.5:1 reverse dome piston and ring set. Order rocker box gasket set, base/head gaskets separately...

Tappet base allen screws. Chrome finish  Fits: XL 1957-1984

The rocker box bolts and washers are for both heads. Chrome finish Fits: XL 1957-1976

Rocker arm shaft end nut kit contains 4 cap nuts and washers with you choice of cadmium or chrome finish. Fits: FL 1966-1984 FX 1971-1984 FLT 1979-1983 FXR 1982-1983 XL 1957-1985

Hex head bolt, chrome finish. Fits: XL 1957-1972

Acorn cam cover screw Fits:FL 1970-1984FX 1971-1984FLT 1979-1992FXR 1982-1992FXST 1984-1992FLST 1986-1992FXD 1991-1992

Colony Cam cover allen screws. Fits:FL 1970-1984FX 1971-1984FXST 1984-1992FLT 1984-1992FXR 1984-1992FLST 1986-1992 UOM: 7 - SET

The Colony Top Motor Mount Kit: Companion countersunk washers and flat head Allen screws add a custom look Made in USA Fits: '93-'15 Big Twin Models

Dew Manufacturing Custom Cycle Engineering Top Stabilizer Link: Unit replaces stock link Rubber mounted bushings isolate engine, reducing vibration

Bassani Road Rage 2-into-1 Exhaust Systems Stepped headers merge into a true reverse-cone megaphone muffler 1 3/4" headpipes steps up to 1 7/8" into the collector to increase flow and improve performance 4" muffler body with billet end cap Removeable...

Bassani Road Rage 2-into-1 Exhaust Systems Stepped headers merge into a true reverse-cone megaphone muffler 1 3/4" headpipes steps up to 1 7/8" into the collector to increase flow and improve performance 4" muffler body with billet end cap Removeable...