Originally Posted by AMGLover

Welcome to the club - may I suggest some seat of the pants time + research before you tinker, you will find that there is little 'random' stuff that will improve performance.

On the K&N remember that the AMG 112.E32 does NOT have an air bypass when the SC is not engaged. Trust that the performance issues are not with the mill getting enough air. Save your money for 1) ECU re-program 2) pulley.