BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | OFFROAD ENGINE ENGINE 1230 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 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”. HOT CAMS (CONT) FITS MODEL DESCRIPTION INTAKE LIFT INTAKE DURATION (@ 1 MM) EXHAUST LIFT EXHAUST DURATION (@ 1 MM) PART # HONDA (CONT) CRF450R/RX 17-20, CRF450 RWE 19-20 (stage 1) Single-cam motor, good bottom-end and midrange increase’s up to 9,400 rpm with slight loss 9,400 rpm to redline. Camshaft designed with improved throttle response technology. Uses stock valve springs and cam followers. Uses stock decompression mechanism. 10.41 mm 246 9.91 mm 257 0925-1593 CRF450R/RX 17-20, CRF450 RWE 19-20 (stage 2) Single-cam motor, slight bottom-end and midrange increase’s up to 7,400 rpm with great gains 7,400 rpm to redline. Camshaft designed with improved throttle response technology. Uses stock valve springs and cam followers. Single-cam engine. Uses stock decompression mechanism 10.95 mm 253.85 9.91 mm 257 0925-1594 XR600R 88-00 Excellent mid-range and top-end power increase. Does not use auto-decompression. Uses stock valve springs and rockers. 8.8 mm 258 8.8 mm 258 XR600S1-A NX 650 Dominator 88-89 Excellent mid-range and top-end power increase. Does not use auto-decompression. Uses stock valve springs and rockers. 8.8 mm 258 8.8 mm 258 XR600S1-A XR650L 93-20 Excellent mid-range and top-end power increase. Does not use auto-decompression. Uses stock valve springs and rockers. 8.8 mm 258 8.8 mm 258 XR600S1-A XR650R 00-07 (stage 1) Similar to HRC profile with more mid-range and top-end power than stock. Does not use auto-decompression. Uses stock valve springs and rockers. 9.26 mm 254 9.2 mm 251 XR650S1-A XR650R 00-07 (stage 2) More aggressive than the HRC profile with more top-end than Stage 1. Does not use auto-decompression. Uses stock valve springs and rockers. 9.57 mm 265 9.5m m 260 XR650S2-A HUSQVARNA FC 250 16-22 (stage 1) ITR dual-cam engine. Intake and exhaust cams sold separately. Cam gains all the way to 11,000 rpm with slight loss 11,000 rpm to rev. limit. Uses stock valve springs. 10.86 mm 242 - - 0925-1188 FC 250 16-22 (stage 1 & 2) ITR dual-cam engine. See intake performance description for gains. Intake and exhaust cams sold separately. Uses stock valve springs. - - 10.51 mm 238.3 0925-1189 FC 250 16-22 (stage 2) ITR dual-cam engine. Intake and exhaust cams sold separately. Cam is equal to stock up to 8,200 rpm, then gains up to rev limiter. Uses stock valve springs. 11.63 mm 253 - - 0925-1190 KAWASAKI KX250F 04-10 (stage 1) Intake. Excellent mid-range and top-end increase. 9.14 mm 253 - - 0925-0050 Exhaust. Excellent mid-range and top-end increase; uses stock auto-decompression mechanism. - - 7.98 mm 244 0925-0051 KX250F 04-10 (stage 2) Intake. Excellent top-end power, great over-rev. Use stock valve springs. 9.14 mm 258 - - 0925-0148 Exhaust. Excellent top-end power, great over-rev. Uses stock auto-decompression mechanism and valve springs. - - 8.25 mm 248 0925-0149 KX250F 11-16 (stage 1) Intake.This cam is intended to be used as a set with the PART #0925-0662 exhaust cam.This set will provide greatly increased low- to mid-rpm torque up to 9,400 rpm and higher peak torque. 9.14 mm 237 - - 0925-0661 Exhaust.This cam is intended to be used as a set with the PART #0925-0661 intake cam.This set will provide greatly increased low- to mid-rpm torque up to 9,400 rpm and higher peak torque. - - 8.38 mm 239 0925-0662 KX250F 11-16 (stage 2) Intake.This cam is intended to be used as a set with the PART #0925-0664 exhaust cam.This set will provide improved torque at all rpm, much improved peak torque and increased peak horsepower. 9.65 mm 245 - - 0925-0663 Exhaust.This cam is intended to be used as a set with the PART #0925-0663 intake cam.This set will provide improved torque at all rpm, much improved peak torque and increased peak horsepower. - - 9.65 mm 245 0925-0664 KX250F 17-18 Stage 1 ITR intake. Dual-cam engine. Excellent mid-range and top-end increase over 8,000 rpm. Uses stock valve springs. 9.9 mm 242 - - 0925-1242 Stage 2 ITR intake. Dual-cam engine. Excellent mid-range and top-end increase over 8,000 rpm. Uses stock valve springs. 10.41 mm 254 - - 0925-1244 ITR exhaust. Dual-cam engine. For use with both Stage 1 and Stage 2 intake cams. Uses stock valve springs. - - 9.65 mm 256 0925-1243 KLX400R/SR 03-04 Intake. PART #s 0925-0693 and 0925-0694 are designed to be used as a set. These cams will provide improved full-throttle torque and horsepower at all rpm 4,000 and up. Uses stock KLX400 valve springs. 9.07 mm 238.5 - - 0925-0693 Exhaust. PART #s 0925-0693 and 0925-0694 are designed to be used as a set. These cams will provide improved full-throttle torque and horsepower at all rpm 4,000 and up. Uses stock KLX400 valve springs. - - 9.07 mm 238 0925-0694 KLX400R/SR 03-04 Intake.This cam replaces the Hot Cams #2047-1IN. It has better low rpm torque, pulling power and throttle response. For best results it should be used with the Hot Cams #2050-1E exhaust cam. Uses stock KLX400 valve springs. 9.14 mm 230 - - 0925-0695 Exhaust.This cam replaces the Hot Cams #2048-1E. It has better low rpm torque, pulling power and throttle response. For best results it should be used with Hot Cams #2049-1IN intake cam. Uses stock KLX400 valve springs. - - 8.64 mm 231 0925-0696 KLX450R 08-12 Intake. PART #s 0925-0563 and 0925-0564 are intended to be used as a set. Increases low rpm pulling torque and peak horsepower. Can be used with stock airbox and spark arrestor. Will produce greater gains with airbox modification and spark arrestor removed.Aftermarket “race” motocross type muffler. Depending upon engine modifications, will provide improved horsepower. 9.14 mm 234 - - 0925-0563 KLX450R 08-12 Exhaust. PART #s 0925-0565 and 0925-0566 are intended to be used as a set. Should be used with airbox modification.Will provide better results with no spark arrestor or an aftermarket “race” motocross type muffler. Depending upon engine modifications, will provide improved horsepower. - - 9.91 mm 250 0925-0566
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