Mine are

Stack boost gauge and maybe water temp

Alloys redone

Body work redone (depending on funds)

3D boost controller

Reconfigure the battery, new cable, new battery, new clamps
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407BHP and 340lbft
TD GT28/32 hybrid turbo, 3inch decat, 2.75inch exhaust, air intake + large MAF, injectors, fuel pump, tubular manifold