quadzilla race module. 4 power levels. 0-60-100-140hp. adjust on the fly. installs in under 10 minutes. i love mine. the power is great for the money, install easy, reliability has been very good. there are more powerful modules and programmers out there, but the quad standard and race modules are good starting points, and good modules to stack with at a later time. both modules provide boost fooling.

http://www.quadzillapower.com/products/d20045.html

qzilla(dtr login) is the big cheese at quadzilla. he is always on here, answers questions and pm's. you can get the modules through the DTR storehttp://store.dieseltruckresource.com/dopemo.html

support the site, get a good deal, and good customer service