93 Octane

Ijeos + 93 cts 4 v4

I put the car back on v3 car didn't feel as good and wile highway driving I got on it in high gear (6th) to pass and it broke up really hard all of a sudden to the point I had to let out. Also how mutch boost are u targeting and is what u are targeting the most we can get out of what I have im hoping for 22 to 24 but your the professional.