Is there a site that explains the workings of the MaxEffort R. Does it work w/ the stock type MAF? Is it like a thumbwheel? How does it allow you to make changes and what changes can you make? Who sells it? Sorry for all the questions, but my intrest is sparked. I am looking for a chip that allows better drivability on the low end w/72's. I too was waiting on Red's Raptor for the reliabilty aspect, With Reds 106 chip for 72's, off idle response leaves alot to be desired. Erics (turbo tweak) chip w/ open loop idle solves that, but is short of Reds chip in performance . Thanks for your answers.