Set of 2 cast iron exhaust manifolds and 2 exhaust risers with high-quality gaskets, bolts, and nuts for easy, direct fit installation.
Pressure-leak-tested during manufacturing to ensure high-quality performance.
Manifolds replace Merruiser part number 99746A17 and risers replace Mercruiser part number 807988A03.
Enhanced-Efficiency: Don't just replace your Volvo Penta and OMC Manifold, upgrade with FASWORX. These coated cast iron manifolds and risers provide fuel efficiency and improve acceleration.
Premium-Promise: Trusted by boaters and mechanics alike, the FASWORX cast iron exhaust riser offers OEM standards and reliable results at a fraction of the cost for DIY repair or sourcing parts.