I just received my Xcal-2 & LC-1 from Justin at VMP tuning:
http://www.vmptuning.com/store/index.php?

I downloaded the 87-performance tune and it definitely met my expectations.
I have a 2005 Manual, and the butt dyno definitely noticed a difference.
I can't wait to try the 93 perf tune, and for the first time in my life
I can't wait to run out of gas!

I must admit that VMP was not my first choice.
I had some problems with my first choice,
and recently noticed others were also having issues
with the same tuner.
Justin responded to all my inquiries both before & after the sale.
He gave me what I wanted, when I wanted it,
and at a very reasonable price.

I know everyone has his or her favorite tuner.
I now have mine, and I highly recommend this product!

 

Congrats! You got a great product from a guy who knows V6 Mustangs and how to tune them right!

 

Night and day difference, eh? Lotta amazing tuners out there with a lot of passion for our wee 4.0L's!