Guys,A bit of input please. I am very interested in purchasing an exhaust brake. I see that there are some that will work with my existing vacuum system and some that use compressed air..... Not certain that I want to add a compressor and associated cost.(boy it seems nice and would work for the arb in the future....) My question mainly revolves around the connection to the exhaust. I need to replace my exhaust, and I was looking at the 4" diamond eye. Many of the lesser cost Exhaust brakes I am finding (Jacobs, Banks etc...) Say works with stock exhaust only. (I am looking at the elbow type brakes.) Since the Diamond eye would replace a "stock" exhaust, would the above be the correct elbow brakes? (I think I just answered my own question, but input would be greatly appreciated!!!)Also If I am staying basically stock, AND I don't have an automatic (so TCC control is not a worry) is there any REAL difference in each of the different manufacturers approaches?Thanks for your input,Hag