I've tried the Torque Dog, and it showed good acceleration after 1800 rpm. I've currently got an EZ installed, it seems to be similar, but I like the idea of the boost fooler, if I ever upgrade injectors. I have a four inch exhaust ready to install. I want to put on some more miles with the EZ before I do that. You know try just one thing at a time. It's hard to do, but I'm going to stick with that plan.