My friend Jayson just completed his first HPDE on his '07 Gti, tune, shocks/springs, stock wheels surely needs some better braking.
Fluid and some pads.
He'll be doing A LOT of mainly DD duty so they need to be quiet/clean'ish but handle the heat of a 20min DE session.
I haven't used many "street/track" perf. pads other than from borrowed autoX cars and some HPS's I had on a beater '94 Escort GT. I'm usually buying Hawk blue/PCF01's/R4's etc..
Pretty heavy car but I feel there's going to be some decent improvements w. a nice pad and some better rated fluid.