How much more do you hope to get? That's plenty over the stock boost. If you're still using the same turbo maybe that's its limit? If you want more you will need to spend lots of $$$s for a bigger turbo and some other mods. Maybe a 3" exhaust will improve things.
My 2013 auto D4D DC SR5, prefilter, 3" exhaust and Chip with egt probe, stock SR5 rims with Toyo Open Country AT2 265/65R/17's