I got a stage 2 turbo kit in my car, my HP is 388 something now. I was thinking about buying a stage 2 NA engine upgrade, but after installment my HP would be reduced to 258. What's up with that? Should i avoid all engine upgrades now?
You can't have both Turbo and Naturally Aspirated systems on the car at the same time. They mean opposite things. So installing the NA2 removed the Turbo 2 upgrade, and it obviously doesn't mmake as much power.