Berocca, also forgot to add,not sure where you are in WA,but Bob Jane has some good deals on at times, also not sure if you have the SX or SLX,but by the way your asking about SLX wheels you have the SX,our fist I30 SX I changed up to 17" wheels and tyres,fixed the inaccuracy of the speedo and the car has a far better drivability,even over the 16" on our second I30 a SLX,I vaguely remember someone here saying they went to 18" and saying the ride and driavability was far superior to the original wheels,Bob jane offers a full service of doing all the calculations,between the fitted wheels and what you go up to by changing wheel sizes, as you can only change the wheel circumference by 3 % if you wish to remain legal and keep your insurance