800 turbo questions

I’m planning on building my own turbo kit for my 2012 800. I don’t plan on really pushing the limits. I’m looking for a modest increase in power. Id be happy with 55-60 wheel hp. probably run around 6-8 psi. I ordered a garret gt1544 turbo. I’m wondering, do I really need an intercooler? I have a windshield and a rear window, so I don’t see a roll cage intercooler getting much air. Plus, I use my bed so I cant really install one there. This machine is used at elevations 5,000-8,000 feet. mostly in the mountains trail riding and a few trips to the Idaho dunes a year. Can I get away with the stock injectors at 6-8 PSI with an attitude fuel controller?