MST MT07 Wheel 17x9 20mm 5x114.3 73.1 Black w/Machined Lip Gold Rivets Outback_2015-2019 It features an internal brass

It features an internal brass piston design and is pressure tested to withstand up to 70psi

It's not mandatory but it is suggested that any valve lock not be reused on performance applications do to material grooving

Reduces or eliminates bubbles or vapor barrier that form on hot metal surfaces to reduce coolant temperatures by up to 20 degrees

The adapter is made from 6061 aluminum and anodized black

MST MT07 Wheel 17x9 20mm 5x114.3 73.1 Black w/Machined Lip Gold Rivets Outback_2015-2019 It features an internal brassPart #: MST 07 7965 20 BKGL MST MT07 Wheel 17x9 20mm 5x114. 3 73. 1 Black w Machined Lip Gold Rivets Universal. Available Bolt Pattern: 4x100 4x114. 3 5x114. 3 Available Size: 17x9 +20 Weight: Warranty: Limited Lifetime Structural Warranty 1 Year Warranty on Paint Finishes This item is non application specific. Please verify compatibility before purchase. May require some modification for proper installation.