David G, I've been looking at your ART site today and notice the boost controller. Am I right is guessing that the "boost controller" works the same as the "boost upgrade kit" but just provides the additional "switching" feature?
Also, what is the difference between fitting a "boost upgrade kit" and an "ECU chip"? Do they essentially do the same thing by overcoming the factory boost-limit, or is there more to it, or something else? If thay are different, what are the pros n cons of each?