Cost me $4000 to get the gtr engine in my car and running and when you compare that to say a rb25 or a rb20 with a turbo upgrade $1500, z32 afm $300, bigger injectors $350, new computer or chip plus tune $500 upto $1500. Add it up. It isn't really worth the money to end up with lots of lag. Although I don't mind the hit of a 20 when it comes onto boost. My 26 power is a bit to linear for a turbo car.