Well i just picked me up a XPE and word it its just a red head alpha with a diffrent name and color head. I looked into it a bit and the blocks look the same, along with alot of other stuff. What you guys think also im ganna try out a GRP 2053 pipe. How you think it will work and whats the best pipe for these in the jammin jp line? I know alpha and dynamite have pipes but i want a jp pipe considering they work with alot of engines that i run. THANKS for all your input.