Valve Guide 964 / 965 3.6L - Exhaust - Standard - 9 x 13.06 x 51.2 mm

As valve guides age, they lose their ability to locate the valve to the valve seat. That can create a loss of performance due to the ineffective seal of the combustion chamber. Be sure to replace your guides when replacing valves, valve springs, etc. Sold Individually. 6 Necessary Per Vehicle._x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.