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Hi, guys! I was thinking about upgrading my stock Turbo to a 20g in my 2006 wrx. I have a few mods that are bolt on and as far as I know, I don't believe there is anything done to the engine. Is there anything you guys recommend that I should do when upgrading my Turbo to a 20g or should I be safe with my set up now. Thanks
 

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Highly recommend upgrading the fuel system for sure. Parallel lines w/ rails, bigger injectors and 255 pump.
Plus TGV deletes are a good upgrade with bigger turbo. Depending on your power goals, a front mount intercooler . Also depending on power, you may think about external wastage, better quality Bypass/Blowoff valve.
Turbo back exhaust
Speed Density for tuning.
Turbo inlet hose that wont collapse under boost.
I'm sure I'm forgetting some stuff, but those are good things to think about when going bigger turbo, and to optimize the efficiency of the turbo.
 
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