I wonder how much headroom this turbo has? A typical Stage 2 bolt on might be too much for a small turbo that already has an overboost feature.
My old gc had a td04-13g... 185whp/200wtq stock at 14 lbs. Stage two reflash, supporting mod and a few other mods by me all i could ever get was 282whp/320wtq at 21lbs peak settling down at 19lbs after 5k rmp... Anything after that and it became a flame thrower glowing cherry red and didnt produce anything else... I swapped a gt30 and it was a diff story... I dont know what turbo the st has but im sure it can hit 300whp no problem
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