Valve Spring Retainer 911 / 930 / 964 / 965 - Titanium - Upper - for Sport Springs

Titanium Alloy valve spring retainers are extremely lightweight, durable and are more resistant to high temperatures than Aluminum Alloys. Manufactured in Germany by Schrick AVL, who is world renowned for their quality and performance. We only recommend these in conjunction with sport springs. Professional Installation is Required. Different manufacturing tolerances require an inspection of the free clearance of all parts! Sold Individually._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.