Welcome to UKSC ;) Looks like the suspension is uprated on it so I would recommend uprating the front discs and pads and possibly braided hoses next before "upping" the power Engine wise I would then get a HKS actuator, so you can hold stable amounts of boost, along with a decat and possibly front mount intercooler. You may need to have a Fuel Cut Controller/Defender (FCC/FCD) Anyways hope you find what your looking for on here and a nice GT ;)