Edelbrock Performer Series Cast-Iron Exhaust Crossover Plugs - Oldsmobile NZHC001A The HANS device

The HANS device

Heavy duty 1/4in

1991-1993 GMC Sonoma

19 in Fan Opening

531" Teflon seals

Edelbrock Performer Series Cast-Iron Exhaust Crossover Plugs - Oldsmobile NZHC001A The HANS deviceExhaust crossover plugs are designed mainly for use in marine or off road applications. They are made of cast iron and install into the exhaust crossover without any modifications. Edelbrock, Performance, Olds, 2733, Crossover Plug, Cast Iron Plug, Oldsmobile, Block off, Heat Crossover, Exhaust PlugSince 1938, Edelbrock has been committed to making the finest high performance products in the industry. The famous Edelbrock Intake Manifold, Edelbrock