The top end does leave something to be desired but it's a fair trade off for the low end response. If the turbos weren't so damn loud with 3" exhaust and dual pop intakes most people would never know it's a turbo car. If you search for Evan Wrights 91 graph you'll see what MSP's add to the car. He gets into the power even sooner than my car and holds it a hell of a lot longer. This of course was before he went crazy with e85 :)