While rep was polite at (+1 330-359-1337) I ask for some options as there were a few,, there alse were an assortment of products to install and better than a grand worth of parts I needed and was able to messege jexxs and was offered 2 options , supporting part numbers , question I had about ceramic headers and hardware I bought as I was impressed with the service and if I can't get the summit rep to talk I'm sure if I had a problem that would be no fun to deal with.. it is just a toy I'm sinking 10 grand in so no worries, I have a way to work. Needless to say the 600 dollars in my cart I won't be ordering. These folks don't need your business so don't ask much of them. I founded the company I'm with 3 1/2 decades ago and I learned long ago for every bis that don't care to help you there's a dozen that will. Good luck making it with lazy customer service reps.. thank you for your time. Alex w. Of ky PS as pictured is just a few parts ordered in this build.. thanks to jegs, rock, gm