Enhance your engine bay with the Racingline billet MQB expansion cap, a superb accessory for engines like the 1.4 TFSI, 2.0 TFSI, 2.5 TFSI, 3.0 TFSI, and 4.0 TFSI. This cap adds a touch of elegance while replacing the standard plastic cap.Seamless bolt-on fitment Constructed from T6061 alumin..