It runs really well, 1.1bar and estimated 180-190bhp it's quick enough! Yeah before chasing power I'd recommend upgrading the brakes and suspension. I'm running a GT4 single caliper 277.5mm setup, the braking force is awesome you can probably get everything you need for ~£250 or less. Coilovers are one of the best mods you can do as well as ARBs and braces to sort the handling, and an LSD helps put the power down a lot. So I'd say do some basic bolt on mods to run 0.75 bar (below fuel cut) on stock ECU, so it's a bit quicker and then sort the brakes and suspension out.