For my Red T I got a few upgrades. I upgraded the turbo, downpipe, intercooler, TB and plenum. Should be easy 10's now.
old combo: CPT61 BB, CAS V4 IC, stock TB/plenum, THDP
new combo: CPT66 BB, Cottons FMIC, 70mm TB/plenum, Cottons DP with external wastegate
old combo: CPT61 BB, CAS V4 IC, stock TB/plenum, THDP
new combo: CPT66 BB, Cottons FMIC, 70mm TB/plenum, Cottons DP with external wastegate