Thats what I ws thinking.

Amanda im guesing you mean 40bhp which is perfectly normal when changing r/r's. Thie info you want to be more concerned with is the shape of the graph. Compare the bhp/torque/afr/boost info if all there, as long as they have the same characteristics then all is fine imo. Ava use a d/d ithink (christians place??) if there r/r as clan is a dd then there may be cause for concern bug generally different rr's do have varying readouts.