Handling is a strange one if it's for multi purpose .
On the road mines horrid , get it on track and it's awesome
Trackday yesterday with only 0.8 bar of boost due to fueling issues so around 340bhp and not much could catch us other than a busa caterham .
As for arbs change them both to 24mm . It's a myth that changing the front at the same time will leave you with the same issue .
Speak to Alan @ AS performance he'll sort you out with what you really need and at a very good price .