Pipe Sets For 1948 - 1969 Generator Big Twin Engines With STD Cylinder Heads In Rigid Or Swingarm Frames

1-3/4" Pipe Sets For 1948 - 1969 Generator Big Twin Engines With S.T.D. Cylinder Heads In Rigid Or Swingarm FramesThese headpipe sets and 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 exhaust systems for 1948 – 1969 rigid and swingarm frames and modified them accordingly. 712CSTD 2-Into-1 headpipes ONLY for use with an extension or muffler (kick or electric start) 715BSTD 3-piece Upsweep headpipes ONLY use with tail pipe extensions or universal mufflers (rigid frames with kickstart ONLY) 713-40STD 3-piece Slash Cut drag pipes with an over-thetransmission rear pipe and a front ‘S’ pipe for kickstart ONLY. Will not fit with a large FLH battery (rear pipe has a slider channel) 713D40STD 3-piece Slash Cut drag pipes with a Shotgun rear pipe (with slider c