I installed a set of pacesetter lt's with the ory into 2.5"pipe into a flowmaster then dumped over the axle. Everthing went fine with the install and new nelson tune but i just really cant tell a big power gain. My old pcm from nelson was for 89/93 a cai, 160*stat, vette servo, no tm. The new one was for the lt's and no egr. Maybe its still in the relearn phase but i dont know. iv gotten people to ride with me and they cant tell a difference either. I'm being optimistic about it so maybe it will be better the more i drive it. I have sent allan a pm but i figured id get a few more opinions