I'm using nankang ns20 215/45/17 front and 225 at the rear, but now when i've got welded diff in some crappy 15's at the rear. Nankangs were quite good, but tbh they're bit shit for the front, need something better, as for the rear i've got no complains. now i've got pair of p zero rosso to go on a front, hope that will make a big difference.
Try some Stunners or Winter tyres for that added life haha.
I run what ever the hell I can find for free or cheap.
Usually 215 up front and 225 on the back, but this season im going to try out a 215 on the rear for those fitment things.
Maxxis maz1's 225/40/18's upfront and cheapest 225/40/18's possible on the back! At the moment ive got events on the rear £50 a corner fitted and balanced and the maz1's were £70 fitted and balanced a corner.