I was looking into this months ago and lost interest due to other distractions, But I have 95% of the stuff to do a build, I was looking for feedback but looks like everyone here is 3 steps behind me...here is some good reading http://www.smacksboosters.110mb.com/ this guy seems to be the "GURU" I am going to do his plans and see what happens...I just bought a scanguage 2 to get a base line...I am going to hollow my cat this weekend and get another base...On 2/7 I am attending the Carolina's 355 meet at PCMFORLESS to get a full tune..then I will Install this booster and let ya know what happens