Supertech Audi 1.8T/2.7T Manganese Bronze Int/Exh Valve Guide Oversize OD 11.075mm - Set of 12

If you're rebuilding the top end of your Audi 1.8T or 2.7T engine, getting the valve guides right is a critical step. These Supertech valve guides are made from manganese bronze, a material known for its good wear resistance and ability to handle the heat inside your cylinder head. This set includes 12 guides, enough for a full engine, and they are an oversize OD at 11.075mm, meaning they're intended for applications where the original guide bores have been machined to accept them.

Manganese bronze offers a good balance of hardness and lubricity, which helps reduce friction and wear on both the guide and the valve stem. This can lead to improved valve sealing and longer engine life. Because these are an oversize OD, they are designed to be installed in cylinder heads that have been specifically prepared to accept this larger diameter, ensuring a snug and proper fit for optimal performance and durability.