High Flow Intake Valve 16V (5 cyl 20v) 32mm, 7mm stem Undercut

Description

Techtonics 16V (Audi 5 cyl 20v)intake valve (32mm, 7mm stem Undercut for High Flow). 12 cfm gains in low valve lifts and 6 cfm with high valve lifts. Black nitride treatment reduces friction, improves heat dissipation and Valve guide wear. Stem undercut to 6.5mm. (Will work in “ABF” cylinder heads (single groove retainers and keepers will be needed) Also can be used as std replacement.