Unfortunately Howell's is the only place that makes them. Almost all vendors sell them. You are better off buying them from a vendor, so atleast if they are impossible to make fit you will have customer support and may be able to exchage them. Dealing directly with Howell's is never good from my experience. The subrails I got are usable, but are going to require a couple of days to get right. This is going to include cutting out the wrinkle were the cowl extentions fit and welding it back to being flat on the top. Rod