A aikitim Messages 34 Messages aikitim Dec 3, 2010 #1 I just race modded my Z28 and now it won't let me upgrade my engine past level 1. Whats going on here and why am I stuck at 400 bhp?
I just race modded my Z28 and now it won't let me upgrade my engine past level 1. Whats going on here and why am I stuck at 400 bhp?
