[Rysaber]

I was recently suggested adding a shift Kit to my 2007 Mustang. I was wondering if I needed one, what a shift kit was, and what does it do for the cars preformance? Also I have searched the back logs of here but found no mention of it for the newer Mustangs will they need a trans cooler, and what if they are an Automatic Transmission will a shift kit add anything?

David

[amustangrocks]

the old shift kits with the balls and springs from the old days has been replaced with the computers in the new cars. you need to get a custom tune and they can make it shift as hairy as you want

[amustangrocks]

forgot to add: they allready have coolers. the custom tunes can control everything like when and how fast and how hard it will shift. and along with that, you get a ton more performance from the motor. its a win win.

[billthecougnut]

1+++ on what Mike said, all done with the tuner these days. Factory settings are pretty darn sloshy, In fact, I was more impressed with the difference of the shifting, than I was with the power increase that the tuner gave me, (although there was a NOTICABLE power increase for sure). My auto can "chirp" the tires from 2nd to 3rd now and comes darn close to doing it from 3rd to fourth. On the track I wouldn't be supprized to hear a bark from 3rd to 4th.

[Rysaber]

Sorry to be a complete Noob but what is "Chirp' is that tire squelling or something else?

David

[Black05Pony]

'Chirping' the tires is what we call it when you shift from 1-2, 2-3, etc. and the tires slip going into the next gear, making a short squealing sound.