3 Bolt Collector Flange, 2 Center, 2-1/2 Hole Spacing

EMPI 3-Bolt Collector Flange: 2-Inch Center

Reliable Exhaust Connections

The EMPI 3-bolt collector flange is a heavy-duty steel component designed to eliminate the common issue of exhaust gasket blowouts in air-cooled VW engines. Featuring a precise 2-inch inside diameter and 2-1/2 inch hole spacing, this flange provides a secure, professional-grade seal for custom exhaust fabrications or muffler replacements. Sold individually, these steel flanges are built to withstand the high heat and vibrations typical of performance Volkswagen engines.

VW Fitment & Compatibility

This collector flange is engineered specifically for Volkswagen air-cooled applications, including the Beetle, Karmann Ghia, Type 3, and custom Dune Buggies or Sand Rails. It is designed for exhaust systems utilizing the "small" 3-bolt collector pattern. Before ordering, verify that your header or muffler requires a 2-inch center opening and 2-1/2 inch bolt-to-bolt spacing to ensure a perfect match for your specific exhaust configuration.

Pro Tech Tips for Installation

Check for Surface Flatness: Before bolting the flange to your header, use a straight edge to ensure both mating surfaces are perfectly flat. If there is any warping from previous heat cycles, a light sanding on a flat block will help prevent exhaust leaks.

Use High-Temp Anti-Seize: Always apply a small amount of high-temperature anti-seize to the mounting bolts. This prevents the hardware from seizing due to extreme exhaust temperatures, making future maintenance or muffler swaps much easier.

Tack Weld for Alignment: When building a custom exhaust, bolt the flange to the header first and then tack weld your exhaust tubing to it. This ensures the flange remains perfectly aligned and won't pull or warp during the final welding process.