Hedman Hedder 2.5" Collector Reducer Pair — 2.5in Inlet to 2.5in Outlet, 3-Bolt Ball-and-Socket Flanges, Steel

The Hedman Hedder Collector Reducer is a steel, 2.5"–to–2.5" exhaust connector with 3-bolt ball-and-socket flanges sold as a complete two-piece installation kit.

This pair of collector reducers links 2.5-inch collector openings to 2.5-inch exhaust tubing using a durable mild-steel construction and a 3-bolt ball-and-socket flange system. Supplied with the necessary hardware, flanges and gaskets, these reducers simplify joining headers to downstream pipes while allowing a secure, serviceable connection that resists leaks and misalignment.

How does this reducer fit into an exhaust build?

The Hedman Hedder collector reducer bridges the header collector and the exhaust pipe without changing diameter, using a ball-and-socket flange to accommodate slight angle differences. It provides a compact connection point that’s easy to disassemble for maintenance or replacement.

• Connects 2.5" collector to 2.5" exhaust tubing
• Ball-and-socket flange tolerates minor misalignment
• Quick removal via three-bolt flange design

What materials and hardware are included with the pair?

Each pair is constructed from mild steel for strength and weldability, and arrives ready to install with all required fasteners, flanges and gaskets. That means you get a complete solution without sourcing extra parts.

• Mild steel body for durability and welding
• Included 3-bolt flanges and matching gaskets
• All installation hardware supplied in the kit

How does the 3-bolt ball-and-socket flange help installation and service?

The three-bolt ball-and-socket design allows a secure seal while accommodating slight angles between header and pipe. It makes final alignment simpler and helps prevent flange stress during engine movement or vibration.

• Ball-and-socket geometry reduces flange binding
• Three-bolt pattern ensures even clamping and sealing
• Easy to remove for inspection, gasket changes, or repairs

Will this fit my vehicle and what should I check before buying?

Confirm both your header collector and exhaust tubing measure 2.5" diameter; this part does not adapt to other sizes. Also verify flange bolt spacing matches your header or mid-pipe flange pattern to ensure compatibility.

• Designed for 2.5" inlet and 2.5" outlet only
• Check flange bolt pattern and spacing before purchase
• Intended for use where mild-steel components and welding are acceptable

Who is this for: This pair is aimed at fabricators, DIY exhaust builders, and performance shops needing a reliable, serviceable connector between 2.5" header collectors and 2.5" exhaust pipes. If you require a straightforward, all-hardware-included reducer with a forgiving flange that eases alignment and future service, the Hedman Hedder collector reducer is a practical choice.