These guys - http://www.stylinmotors.com/ - have basically the same stuff as Samco and all their hoses are sold by inner diameter. I'm going to eventually replace all my stock hoses with red, blue, or black hoses like the racing S3 in Tourist Trophy. You'll of course have to measure all your stock hoses to get the right sizes but it'll be a lot cheaper than those stupid expensive stainless hoses.