This MMR kit includes 16 Intake and 16 Exhaust valves made of Premium US made Stainless steel, swirl polished and undercut for higher flow. Compatible with all valve locks and retainers including stock.
Also increases valve clearance due to smaller valve margin (approx. .020 smaller)
These valves are .5mm oversized to help increase flow.
A valve job should be performed with any valve replacement.
