What is IRS and does any one have a auto 2001
 

ok wha tis the IRS you people are talkin about and if anyone has a o1 gt automatic what do you run in the 1/8 and the 1/4 i only run the 1/8 and i run9.21 with 2.20 60 foot but i ran a 2.13 60 foot and didnt get any faster at top end but on the start off i held back on the power brake for better traction for the lower 60 foot my mods are k&n and flow masters any and all help and advice is highly appreciated

IRS = Independent Rear Suspension found on '99 and newer Mustang Cobra's

I have a 01 GT with an Auto. I ran a 9.4 @ 78mph. that was my fist time on the track. It was also 93 degree. of south GA heat. I ran completely stock though. I dont remeber my 60 ft time. I lost my time sheets. I just have to get use to the track.