I run the 3" inlet 2"outlet 18g compressor housing and wheel, did a super back rebuild on my center cartridge had to have the center cartridge machined to fit the bigger wheel. I ported my turbine housing a good bit, ported the wastegate as much as felt I could, and purchased their adjustable internal wastegate. All in all cost me around $500 for a very strong turbo that spools pretty quick. Now for the truth it should have just bought the 18g version of what you got and saved myself work and trouble. You can see pics on Instagram @awinner02gt