Mine are the DDM ones. I would just go down one notch to 4500. I may buy a pair and see how they look.
The prices have just dropped though the floor on these kids. Several years ago a bunch of us bought them for our 993 (911) Porsche. They were a steal at $250.
2016 BMW M2 - ED Pick Up on 07/12/2016; 08/10/2016 At VPC in Brunswick HOLD due to Differential
2012 BMW 535I ED Pick Up on 12/03/2011; US Pick Up on 01/27/1012
2001 Boxster S 29,000 Miles, Original Owner
2007 Mini Cooper S - Sold
1997 Porsche 993 Turbo – Sold
1997 Porsche 993 Cab - Sold