Originally Posted by EUROREV
The programming in the timing maps are different that is what makes them different the mb has a bit more timing advance compared to the crossfire. I know this for a fact
Also, it is common practice to qoute HP at the flywheel vs. HP at the wheel to advertise a bigger #.... Could it be that the SLK specs are quoted at the flywheel and the SRT is quoted at the wheel ? Probably...