I just installed the mustang airbox, with the 02 GT MAF, and airbox, colder plugs (22C plugs), 180 T-stat, and xcal 2 from Lonnie Doll @ blueovalchips.com. Wow my tbird runs so much better. The 91 program is just awesome! I have the jmod on my car already, and the 1-2 barks the tires like no other! I had to tone down the line pressure a bit, cause it shifts a bit too hard. But overall, a great improvement over stock, esp. on the low end. Lonnie had noted that "Mike Knows his stuff when it comes to the trucks". My dad has an 04 f150 lariat, i need to convince him to get a tune from Mike.