By us ordering the ASP 178mm pulley kit without their idler pulley (which is removed with our pulley saver kit) we can pass on the savings.
This is our recommended setup for increasing the boost on your 3.2AMG motor
ASP Pulley Kit 331380 (minus idler pulley)
NeedsWings Pulley Saver Kit PSK178
We can include the highly recommended Crank Pulley Holding Tool and a new OEM Crank Pulley Stretch Bolt as an option above.