BOLD MAGENTA part numbers are new for 2025 ENGINE PARTS-UNLIMITED.COM OFFROAD | 2025 ENGINE 1231 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) HOT CAMS continued on next page. 1 Must be used in combination with intake PART #0925-0553. 2 Must be used in combination with intake PART #0925-0555. FITS MODEL DESCRIPTION INTAKE LIFT INTAKE DURATION (@ 1 MM) EXHAUST LIFT EXHAUST DURATION (@ 1 MM) PART # KAWASAKI (CONT) KX450F 09-15 Intake. PART #s 0925-0553 and 0925-0554 when used as a set provide increased low-mid rpm torque up to 8,000 rpm and improved peak torque with a slight loss at top rpm.Throttle response is also improved. FI remapping is not required but may further improve overall performance. 9.14 mm 234 - - 0925-0553 Exhaust. PART #s 0925-0553 and 0925-0554 when used as a set provide increased low-mid rpm torque up to 8,000 rpm and improved peak torque with a slight loss at top rpm.Throttle response is also improved. FI remapping is not required but may further improve overall performance. - - 8.38 mm 240 0925-05541 KX450F 06-15 Intake. PART #s 0925-0555 and 0925-0556 when used as a set provide increased mid-top torque and horsepower. Produces more power than the OEM cams from 5,000 rpm and up with no loss at lower rpm. Produces more power than the stage 1 set from 7,000 rpm and up. Performance will be better. 9.91 mm 250 - - 0925-0555 Exhaust. PART #s 0925-0555 and 0925-0556 when used as a set provide increased mid-top torque and horsepower. Produces more power than the OEM cams from 5,000 rpm and up with no loss at lower rpm. Produces more power than the stage 1 set from 7,000 rpm and up. Performance will be better. - - 10.8 mm 259 0925-05562 KLR650 96-18 (stage 2) Intake. Great mid-range and top-end increase. Uses stock valve springs. Must modify airbox. 9.11 mm 235.75 - - 0925-0324 Exhaust. Great mid-range and top-end increase. Uses stock valve springs. Must modify airbox. - - 9.1 mm 235.75 0925-0325 KTM 250 SX-F/XC-F 11-12 (stage 2) Intake.This cam provides improved top end horsepower with only a very slight loss in low rpm torque. Stock valve springs are OK. 10.73 mm 253 - - 0925-0699 250 SX-F 13-15 Stage 1 ITR intake: Dual-cam engine. Excellent low-end to mid-range gains. Uses stock valve springs. 10.77 mm 243.75 - - 0925-0870 250 SX-F Factory 15-17 (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 250 SX-F Factory 15-17 (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 250 SX-F Factory 15-17 (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 250 SX-F/XC-F 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 250 SX-F/XC-F 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 250 SX-F/XC-F 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 350 SX-F/XC-F 11-15 Stage 1 ITR intake: Dual-cam engine. Excellent low-end to mid-range gains. Uses stock valve springs. 11.43 mm 252.5 - - 0925-0874 520 EXC/MXC/SX 00-02 Excellent top-end power increase; for desert racing or high speed motocross. Works well with high bore kits. Uses stock auto-decompression mechanism. Use stock valve springs and rockers. 10.8 mm 271 10.2 mm 261 KTM520S1-A 525 03-07 Excellent top-end power increase; for desert racing or high speed motocross. Works well with high bore kits. Uses stock auto-decompression mechanism. Use stock valve springs and rockers. 10.8 mm 271 10.2 mm 261 KTM520S1-A SUZUKI RM-Z250 04-06 (stage 1) Intake. Excellent mid-range and top-end power increase. 9.14 mm 253 - - 0925-0050 Exhaust. Excellent mid-range and top-end power increase. Uses stock auto-decompression mechanism. Shim kit available. - - 7.98 mm 244 0925-0051 RM-Z250 04-06 (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 RM-Z250 07-09 (stage 2) Intake. Good mid-range and top-end power increase with improved over rev. Uses stock valve springs. Dual-cam engine. Intake and exhaust cams sold separately. 9.1 mm 245 - - 0925-1587 Exhaust. Good mid-range and top-end power increase with improved over rev. Uses stock valve springs. Dual-cam engine. Intake and exhaust cams sold separately. Uses stock auto-decompression mechanism. - - 8.4 mm 240 0925-1588 RM-Z250 10-18 (stage 1) Intake. PART #s 0925-0656 and 0925-0657 are intended to be used as a set. This set will greatly improve power below 10,000 rpm and provide increased torque peak also with only a slight loss in peak horsepower. 9.40 mm 237 - - 0925-0656 Exhaust. PART #s 0925-0656 and 0925-0657 are intended to be used as a set. This set will greatly improve power below 10,000 rpm and provide increased torque peak also with only a slight loss in peak horsepower. - - 8.38 mm 239 0925-0657 Exhaust. Cam is the stage 2 cam for either stock or lightly modified engines. - - 8.89 mm 244 0925-0660
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