Drag Pipes For 1948 - 1969 Generator Big Twin Engines With S.T.D. Cylinder Heads In Rigid Or Swingarm Frames

1.-3/4 Drag Pipes For 1948 - 1969 Generator Big Twin Engines With S.T.D. Cylinder Heads In Rigid Or Swingarm FramesThese 40" long Slash Cut drag pipes are specifically intended for use on engines with Panhead or Shovelhead lower ends and STD cylinder heads. Because of the unique 3-bolt exhaust flange incorporated into the S.T.D. heads, they require special exhaust systems. We have taken some of our most popular drag pipe sets for 1948–1969 rigid and swingarm frames and modified them accordingly. They all have slider channels to ease installation, and heat shields for the rear Shotgun and over-the-transmission pipes are highly recommended. 724-40STD Staggered dual drag pipes for rigid and swingarm frames with mechanical brakes 724C40STD Staggered dual drag pipes with over-the-transmission rear pipe for rigid and swingarm frames with mechanical brakes. Will not work on swingarm frames with large FLH battery 724D40STD Shotgun drag pipes for rigid frames with kickstart ONLY 724D1-40STD Sho