it will help even when mildly bolted on.
before turbo, I had leaky header gaskets, stock header, HS CAI, 2" cat back, and the UR pulley. The SAFC dyno with no actual tuning put me at 112.9 whp and 118.3 tq. Now, that's a good dyno. iirc Keith's dyno with full bolt ons before the eh was 112.x.......makes you think
I think with full bolt ons and SAFC, dyno tuning could put the QG into the 120whp range.