2:1 Siamese hi-exhaust header with a 1-3/4" outer diameter, fits under the carburetor on rigid or swingarm frames, and features a one piece design. Pipe is a welded one piece unit.
Fits: 1957-85 Ironhead Sportster
NOTE: This header fits close to the motor, so swing arm models will go behind the shock, like the 1960's style of XLCH racers.
CALIFORNIA DISCLAIMER: Not for use on public roads. For competition and closed courses only. Subject to emission control requirements in California.