I am looking to buy one of these to fix my speedometer after i switch my gears to 3.73's.
I have a 2001 Manuel Transmission V6 Mustang
Which ones do i buy??
http://www.dallasmustang.com/page/se...ayout=L&max=25

 

The one that was in my GT when I bought it has been finicky as hell and the car has always read 6 mph slow. To be fair though it might not be installed correctly either. I intend to take it off soon when I install the Tri-Ax, and let the Xcal do it's thing. I would think hard about just saving up a bit and getting a tuner. If you still want to go the speedcal route though and if it'll work for you for 50 shipped and you can have mine.

 

Ill think about it, but if i do save up and buy a tuner can you recommend a tuner that wont cost that much and do the job??

 

Well from what little experience I have the SCT Xcal 3 is pretty good unit. You can get it for I think 379 shipped from americanmuscle and theyll throw in a tune.