Going back to the MIP tranny. I have a few and for my purposes I can't live without them. We run outdoors and in the summer the track itself can hit 125-130 degrees. They really do lower the motor temps by acting like a heatsynch. I cannot even count how many of my competitors literally smoked their motors over the summer while I never saw over 165 degrees in any of my cars. The extra 8 grams right over the rear wheels is a benefit too. Its a great mod if you have the money but its no means a game changer. If your an engineer or a total OCD type the precision of the tranny might also appeal to a person. I wouldn't call it bling but its not a necessity either.