Re CP_e DP I had no fitment issues. Mine was fine and of excellent quality.
BB, I have no issues with a dealer doing mod's. So far I've done them all myself on this car, but I've had huge mod's on a 4WD all done by a dealer here. Not just bolt-on gear but a lot of machining and fitting stuff too. Engage them in what you want to do and it's often a better outcome than doing it yourself or having some low-quality outfit do it, with less experience on the model, and having it all turn pear-shaped and you have no recourse.
CP_e Standback & PNP; CP_e 3" SS Downpipe; Corksport FMIC with Top-mount K&N filter & OEM Ram CAI; Turbosmart BOV; Dashhawk; Prosport Boost Guage; JBR solid shift bushes; DBA 4000 Wiper-Slot front rotors; Hawk Ferro-Carbon HPS Street front brake pads (@ 69,000km); Sumitomo HTRZIII's in 225/45 x 18