performance questions
I have been looking for answers or suggestions regarding some performance parts/choices. I am driving a 06 cls55 amg, W219. I only have 1000 or 2 to spend and was wondering what would be my best options. Chip/Pulley/Headers&Exhaust/intake/throttle body???? Also heard couple things about having to add new cooling pump or system. When would this be needed?
Thanks


