There's no shortage of big finned alloy exhaust pipe clamps out there. Kinda like how every Triumph motor I find always has some type of aftermarket rocker caps to where now it's rare to see the stock type. This brand of clamp pictured in the ad above is something of a rarity though. Unlike the Webco type that has 16 fins or the later angular type with 24 this style above sporting 22 fins is the kind I would really like to find some nice examples of. If you have any please email. Cash or trade. Some time I will take pictures of the different styles of these parts that I have and do a post on them.