Not a good idea if you plan on tracking the car. The throttle is WAY too twitch in DS. It's almost impossible to modulate the throttle.
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."