I've had only Fox bodies, just got a 05 GT. It has from what I can tell cold air intake, BBK headers, Cat back exhaust, and magnaflow muffs. I ran a 14.1 at 99mph with a 2.1 60'. this doesnt sound right. Is the tune as big of a deal as it seems?. I also was able to go through the traps in 3rd gear at about 6200 rpms, so i dont think it has gears but i took a trip this weekend and it seemed that the speedometer was off. i was going75 and people were passing me like i was going 65. if it has a gear, how can i tell, and what can be done to fix the speedometer if it does. THANKS