Okay, my boyfriend's brother is driving me absolutely INSANE. I have a completely stock 06 GT, 5-spd. He has an '02 Chev Duramax diesel (extended cab and all that). Not knowing a whole lot about diesels, I know he's installed a 'box', upgraded his transmission and several other things. He's absolutely DYING to race my Mustang and it's driving HIM crazy that I won't. He knows I won't street race, so he keeps challenging me to take it to the track, which I keep turning him down. I mean, wtf! I'm pretty sure with all that he's done, he'd probably kick my butt...so what would be the point?? Just for him to sit back and say he can outrun a 'new' Mustang?! What do you all think?