Blitz dry cotton panel filter, my own 2.5" mandrel bent suction pipe, Sierra S2 Highflow (ceramic coated), stock actuator with 5mm preload, plenum spacer, 3 inch dump (ceramic coated), 3 inch midpipe with 100cpi cat (ceramic coated), Fujitsubo Legalis exhaust and the brake wire cut mod.
Stock airbox, stock intercooler, stock computer, stock injectors, stock fuel pump.
There is other stuff, but not that directly effect performance.
The key mod in my case; is the loose nut behind the steering wheel.