Stainless Works FC4250-350 Four-Way Formed Weld-On Exhaust Collector 2-1/2" x 3-1/2"

The Stainless Works FC4250-350 is a four-way formed weld-on exhaust collector designed for custom header fabrication. Built for performance applications, this 4-into-1 collector features a smooth flow taper that efficiently merges four primary tubes into a single outlet, helping to reduce back pressure and improve exhaust scavenging.

Key Specifications:

• Configuration: 4-into-1 (four-way)
• Primary Inlet Size: 2-1/2" I.D.
• Outlet Size: 3-1/2" O.D.
• Overall Length: 8 inches
• Material: 304 stainless steel
• Attachment Method: Weld-on

Key Features:

• Formed smooth-flow taper design for optimized exhaust velocity and reduced turbulence
• 304 stainless steel construction for outstanding corrosion resistance and long-term durability
• Sold individually — price is per collector
• Proudly made in the USA
• Backed by a Stainless Works lifetime warranty

The FC4250-350 is an ideal component for builders constructing or replacing headers on high-performance and racing engines. The weld-on design allows for precise fitment and a permanent, leak-free connection when used with matching 2-1/2" primary header tubes.