XL finned header clamp set is investment cast aluminum with a vibration finish on a shot peen natural surface.

*NOTE: Tighten set with 5/16" allen screws that are provided, the front and rear are the same. Both clamps are the same on certain applications and header pipes. *NOTE: Due to the position of the bolt on the front header clamp and limited space it may require 5/16"-18 1" hex nut alternative hardware. You can also drill out threading and use hex bolts and locknuts.

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FITS

XL 1957-1985