[Rebel1]

I totally agree with all the above.

There is also a wheel size to consider. If you are running the 15" then the jag is about as big as you can run. If you run bigger wheels then you have the option for bigger brakes. However, if you do run bigger then give some thought to the brake balance. You don't want an unbalanced system.

If you are running 15's and want to occasional track then fit slotted rotors and better pads to the front. I also suggest you think about changing out the front calipers to lighter ones of about the same size mainly to lighten unsprung weight. The heavy jag calipers retain a lot of heat and don't dissipate it as quickly as an alloy rotor. Running cooling vents is an added bonus and recommended.

I strongly suggest vented jag rears for two reasons.

1. They run cooler which not only helps braking effort but keeps the brake balance in check.
2. Because they run cooler your chance of frying the output shaft seals in the diff is minimized which is a known problem with Jags.

All these little things help and will give you excellent brakes for all but dedicated track machines.