i don't really see the point in buying a vf22 unless you are seriously lacking funds. A vf34 is only like $125 more and it has a better center cartridge = alot faster spool. If you want the extra power get the 18g. It spools as fast as the vf34 but can make more power at higher boost levels. With a catless exhaust system, EM, and an 18g you can break 300awhp with pump gas.
I wouldn't use a vf34 generic cobb map with a vf22 either. The maps are already not specific to your particular application, why make the situation worse. I'm not speaking with experience on this one, but just because the car will run and hold boost doesn't mean your getting the power or reliability you should.