BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | STREET EXHAUST EXHAUST 74 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”. FITS MODEL PART # EMIS* YAMAHA RD350 (all) D14-4315 3 FITS MODEL PART # EMIS* YAMAHA (CONT) RZ350 84-85 D14-4412 3 FITS MODEL PART # EMIS* YAMAHA (CONT) RD400 77-78 D14-4414 3 RD/RZ EXHAUST SYSTEMS •Unparalleled quality and performance; 13 hp increase throughout the mid-range and top end •Ten pounds lighter than stock •RZ350 is aluminum; all others are steel DESCRIPTION PART # EMIS* YSR exhaust D14-4011 3 YSR50 EXHAUST • The best-looking and most-powerful pipe for the YSR50 •Increases top speed from 48 mph to 57 mph • Designed after the factory Yamaha Road Racing Pipes •Comes complete with a rebuildable oval alloy silencer DESCRIPTION PART # EMIS* CBX 6-into-1 exhaust D14-2618 3 CBX 6-INTO-1 EXHAUST FOR HONDA CBX 79-82 •Top-quality 6-into-1 exhaust system for the Honda CBX •High-tech collector design results in a slim silhouette pipe with maximum ground clearance • Deep, rich, head-turning sound makes this a must for any CBX owner DESCRIPTION PART # FOR “O” AND “R” SERIES MUFFLERS 1” 1860-0566 1” w/ block-off plate 1860-1313 1 1/4” 1860-0567 DESCRIPTION PART # FOR “O” AND “R” SERIES MUFFLERS (CONT) 1 3/8” 1860-0568 1 1/2” 1860-0569 DESCRIPTION PART # FOR V2 SERIES MUFFLERS 1” 1860-0939 1 1/4” 1860-0940 1 3/8” 1860-0941 1 1/2” 1860-0942 QUIET CORE EXHAUST INSERTS •Tune exhaust sound and power •Reduces exhaust sound by 1 to 6 dBs •Easy to install by removing rear end cap and placing insert in front of spark arrestor •Available in several sizes; smaller diameter inserts are quieter but more restrictive, larger diameter inserts are louder but less restrictive •Sold each 1860-0566 1860-0567 1860-0942 1860-0939 D14-4414
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