OEM 14 Degree dry joint riser
Fits MerCruiser MCM GM V-6 & V-8 engines with center rise outlet exhaust manifold (2004 and up) 4 inch (102 mm) O.D. (s/n 0W310000 and up)
2002 + MIE GM V-8 (350 & 377 cid) engines with dry joint exhaust manifolds (s/n 0M317000 and up)
14 degree down angle (7 degree also available)
These Will only work with Dry Joint systems!