Leif said:1999 cobra IRS sucks at the drag strip. 2000 Cobra R was a lot better but still broke at the track. The 2001 Cobra (the year before the 03) was only marginally better than the 1999 Cobra. The '03 has been the best made... but still breaks. I've heard of 7 people that have twisted them up. It should fit in a fox just like the 99/01 did.
In order from worse to descent.