Autocross lap time improvement with coilovers

[joshuas13]

Does anyone have any clue on how much faster autocross lap times (all things being equal) would be with some nice coilovers vs. something like Megans?

[Fenris]

Time improvement between 'nice' coil overs and Megans is honestly not likely to be very much. In the .00xxx's of a second region.
Seat time will better improve your lap times than 'nice' coil overs. 'Nice' coil overs may be better able to stand up to repeated tracking though. How the coil over is adjusted would also likely improve time more than spending money.

The other thing to consider, coil overs put you in street modified as a class, and if coil overs are your only mod... you will get stomped. Better off getting just some new shocks/struts. (You cant even change from stock springs until street modified.)