Yes, Sir Pay,
Those are an upgrade part that I have listed under Maxtrix5.
You can pick them up here:
http://cenracing.shptron.com/p/gls17...x-drivers-23mm
As all parts and cars are in stock and ready to ship!!
If you have any questions or just want to order parts, please call the customer support number in my signature
And as always thank you for supporting CEN!