Thank you, I appreciate the feedback.Stock downpipe? Stock up pipe turbo and wastegate setups?
Generally no, you won't need fueling mods, but the fuel system is near or at its limit with a Cobb stage 2+ (intake and turbo back) it can support a touch more but it may be time to look into fueling mods if you are going further.
I would suggest talking with the tuner who is going to handle the tuning for the tgv deletes and see what they say. I didn't see much additional fueling load but I avoided the intake for personal reasons. So I may have not had the air flow to push the fuel system.