Used to convert MerCruiser Marine 8.1L & 8.2L engines with thru transom exhaust to thru prop exhaust. Also requires the use of intermediate elbow kit in conjunction with this "Y" Pipe Kit.

• For 8.1L & 8.2L non-Emissions Control engines, use 44267A02 or 44267A03.
• For 8.1L Emissions Control engines, use 44267A04, 44267A05, 44267A06, 44267A07, 44267A08
• For 8.2L Emissions Control engines with three catalyst exhaust manifolds, use 879288A12, 879288A13, 879288A14, 879288A15, or 879288A16.

Fits all MerCruiser Marine 8.1L & 8.2L sterndrive engines, except 2012 & newer 8.2L Electronic Control engines with single catalyst exhaust manifolds.