07-09-2016, 08:57 AM
I can't believe you've paid that for a back box, it's not a special part, 10-20 quid for an aftermarket one

Phase 1 D-Turdo, K14@24 psi, De-cat, meaty backbox, Bosch pump, grinded LDA pin, duel air fed K&N =133.7bhp & 188ft/lbs