WINDSHIELDS & FAIRINGS AUDIO, COMMUNICATION & MOUNTS SADDLEBAGS & LUGGAGE SEATS & SISSY BARS FUEL/AIR SYSTEMS EXHAUST TRANSMISSION & DRIVELINE ENGINE GASKETS & SEALS LIGHTING ELECTRICAL HANDLEBARS, CONTROLS & MIRRORS CABLES TANKS & OIL FILTERS BRAKES DASHES & GAUGES FENDERS & LICENSE PLATE FRAMES HARDWARE, COVERS & GENERAL FRAMES & SUSPENSION FOOTRESTS & FLOORBOARDS WHEELS & AXLES All part numbers in BLUE are new for 2025. SECTION 7 592 See OLDBOOK For Early Model Applications DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 5-7 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. PART # DESCRIPTION EMIS* 0925-1163 405 chain drive cam 2 REAPER® CAMS FOR 17-24 M-EIGHT •Produce more power and torque in the riding rpm range, improving throttle response, acceleration and fuel mileage •Smooth camshaft lobe ramps are easier on valvetrain components and eliminate excessive valvetrain noise and wear •Dyno proven and track tested •Made in the U.S.A. PART # DESCRIPTION EMIS* 0925-1164 465 chain drive cam 2 PART # DESCRIPTION EMIS* 0925-1325 472 chain drive cam 2 PART # DESCRIPTION EMIS* 0925-1283 508 chain drive cam 3 PART # DESCRIPTION EMIS* 0925-1210 521 chain drive cam 3 PART # DESCRIPTION EMIS* 0925-1372 538 chain drive cam 3 PART # DESCRIPTION EMIS* 0925-1265 592 chain drive cam 3 405 CAM •Produces a wide powerband that increases torque and horsepower throughout the entire rpm range •Direct bolt-in replacement for M-Eight engines; can be used with stock valve springs, pushrods, lifters and exhaust •Will respond well when used with slip-on mufflers or full exhaust system and a high-flow air cleaner •Feuling recommends mufflers with smaller cores for the best low-rpm power •1700 to 5700 rpm range 465 CAM •Produces solid bottom-end performance and substantial gains above 2800 rpm compared to the stock cams •Direct bolt-in replacement for M-Eight engines; can be used with stock valve springs, pushrods, lifters and exhaust •Will respond well when used with slip-on mufflers or a full exhaust system and a high-flow air cleaner •Use of performance valve springs is not required but may result in a quieter, smoother-running valve train; see PART #0926-2973 on page 563 •Responds well when combined with increased engine bore and/ or engine compression •1850 to 5950 rpm range 472 CAM •Great all-around camshaft and Feulings® go to for 4 1/2 stroke 114” and 117” engines looking for a little more than the 465 grind and wanting a bolt-in •Has a great bottom end with substantial gains above 2800 rpm when compared to stock •Use of performance valve springs is not required but may result in a quieter, smoother-running valve train; see PART #0926-2973 or 0926-2974 on page 563 •Responds very well to increased bore and or compression, exhaust system and air cleaner 508 CAM •The Grim Reaper Aggressive pulling power with a nasty sound •This camshaft revs up faster than the 521 grind, sounds nastier and pulls harder, but is more difficult to tune •The REAPER 508 grind will shine in 114” and larger cubic inch engines with added compression ratio •Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range •The stock throttle body produces an excellent powerband and use of a high-flow throttle body will increase peak power numbers •A high-flow exhaust system and air cleaner is highly recommended for optimal performance •Feuling® recommends matching 508 cam with Race Series® oiling system PART #0932-0199 •Requires high lift valve springs; see PART #0926-2973 or 0926-2974 on page 563 •Heavy-duty pushrods are highly recommended; see PART #0928-0091 •2250 to 5900 rpm range 521 CAM •Aggressive pulling power with a “nasty” sound, the Reaper 521 grind will shine in 114” and larger cubic inch engines with added compression ratio •Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range •Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers •A high-flow exhaust system and air cleaner is highly recommended for optimal performance •Feuling® recommends matching 521 cam with Race Series® oiling system PART #0932-0199 •Requires high lift valve springs; see PART #0926-2973 or 0926-2974 on page 563 •Heavy-duty one-piece pushrods are also highly recommended; see PART #0928-0091 on page 568 •2250 to 6250 rpm range 538 CAM •Aggressive camshaft with a nasty sound •Revs up fast and pulls hard in engines with big bore cylinders, modified cylinder heads, intake, compression and exhaust •The Reaper® 538 grind will shine in 124” and larger cubic inch engines with added compression ratio •Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range •The stock throttle body produces an excellent powerband and use of a high-flow throttle body will increase peak power numbers •A high-flow exhaust system and air cleaner is highly recommended for optimal performance •Feuling® recommends matching this cam with Race Series® oiling system •High lift valve springs are required on stock cylinder heads; see Feuling BeeHive® valve spring kit PART #0926-2973 or PART #0926-2974 on page 563 •SE cylinder heads have high lift valve springs, but will need to be verified •Heavy-duty one piece pushrods are also highly recommended; see PART #0928-0091 on page 568 •2250 to 6250 rpm range 592 CAM •Get serious with bore size, ported cylinder heads and throttle body •Aggressive camshaft requiring high lift and higher load valve springs, performance pushrods and lifters •High-flow air cleaner and triple-stepped exhaust pipe highly recommended •Feuling also recommends matching this cam with Race Series oiling system PART #0932-0199 or #0932-0218 •Requires high lift/high load valve springs; see PART #0926-3138 on page 563 •Heavy-duty pushrods are highly recommended; see PART #0928-0091 on page 568 •High lift valve springs, performance pushrods and lifters required •2350 to 5975 rpm range NOTE: 2024 models with Center Cooled heads will accommodate up to the 508 cam as a bolt-in. NOTE: Screamin’ Eagle cylinder heads have high-lift valve springs and do accept the 538 grind cam. NOTE: Due to the unstable nature of this 4-valve engine design with one rocker arm activating two valve springs, Feuling highly recommends running one-piece pushrods over quick-install adjustable pushrods to maintain maximum cam/valve lift and reduce valvetrain harmonics and associated hydraulic lifter issues. NOTE: Feuling fastener kit PART #2401-0994 also highly recommended to help prevent cylinder head cracking; kit replaces the rocker shaft bolts with studs and nuts to help reduce the stress of the rocker shaft standoffs. NOTE: Not for 2023-2024 models with 121” VVT motors.
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