Sneed4Speed offers the best Mini Cooper Valve Guides for the N12/N14/N16/N18 engines found in 2007-2013 versions. Our valve guides are made of Manganese Bronze and are ideal for both intake and exhaust on the Mini Cooper & Mini Cooper S. We at Sneed4Speed sell valve guides in the pack of 8. The valve guides available at Sneed4Speed are highly recommended for all types of preparation of high-performance engines. For more details, visit us at https://www.sneed4speed.com/r5....6-n12-n14-n16-n18-mi