1¾" Staggered Dual Exhaust Systems For 1970-1984 4-Speed Shovelhead FL Models 40"-long Slash Cut drag pipe sets for 4-speed FL models with kick or electric start. They clear the HD factory highway bars, but the right-side floorboard must be moved with a Paughco #734D floorboard adapter (purchased separately!). This exhaust system has slider channels. Heat shields are recommended. (use a Paughco #718D hanger bracket to mount) PART # 734-40 40"-long Slash Cut drag pipes with sliderchannels (use a Paughco #718D hangerbracket to mount) 734D Floorboard adapter for Paughco #734series pipe sets 718D Hanger bracket for Paughco #’s 734-40and 734A40 pipe sets 430F Front heat shield for Paughco #734 seriespipes 422-1RRear heat shield for Paughco #734 seriesrear pipe DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES