Need some help from the big dogs that run in here thanks. I have stock cp3 and injectors.
LoI
Well Im not one of them, but my .02 FWIW
Theres different schools of thought on this and really you can go either way, having gone the "bigger turbo" over "bigger injector" first, I can say it wasn't nearly as satisfying until I coupled it with bigger injectors
So from my experience, I'd say P&P the stock turbo, and ad a BMW or maybe even add a larger billet wheel and work on getting a set of injectors first...then swap for a bigger turbo, then add a performance CP3(s) and if the little engine that could hasn't gone BOOM yet, wait with fingers crossed that you've got the money to build a new engine, cuz I'd image you'll soon need to at that point
My Reasoning:
A Bigger, badder turbo needs more fuel/energy to move the turbine quickly and efficiently and then sustain the compressor at high rpm, you're already significantly taxing the stock cp3/injectors running a built trans max effort tune...so adding a turbine/compressor with a larger mass that needs even more energy, isn't really doing you any favors
Don't get me wrong, you can do it turbo first, I did. Drove with a 4094 with stock fuel for quite a while...but once I got injectors it was a whole different rig, ran smoother and quieter, woke the turbo up off idle and all thru the map...it made me feel like I had wasted my to.e and money buying the turbo first...