Stock Gsr cams, stock Gsr pistons, stock valves, dc sports header, comptech intake with icebox and skunk2 exhaust. Running the factory cat also and no intercooler or water methenal.
So definitely not bad at all. GSR trans would help you out at the track, cams/valvetrain would help you along with the HP. You might see a reasonable gain ditching the DC sports header and going with a hytech replica from private label mfg.
I have dual springs for intake and exhaust. I think I mght run type r oem cams and then use water metn inj and use the Gsr 4.4 final drive. The car is 98% daily driver