oh rite cool
it would of been better to fit the exhaust before you got it remapped tho
then you wouldn't of needed to get it remapped again to sort the fueling and the extra power out.
there is some info on exhausts above that i posted, also some info on intercoolers and turbo upgrades
if you get a exhaust reconmend someone who does decat he makes them himself and has sold a few,also the performance st focus intercoolers fit a treat !!! those little mods should see some good gain is power and heaps of torque too