Description
Overview
The Flowmaster Header Collector Ball Flange Kit is a precision-engineered exhaust connection designed to replace typical three-bolt flange-type connections at your header collector. Using a ball-and-socket design, this kit creates a leak-free and gasket-free seal that stands up to the demands of high-performance driving. Sold in pairs and built to a High Performance grade, it’s the smarter way to join your header to the rest of your exhaust system.
Constructed from 16-gauge aluminized steel with a durable gray finish, this ball flange kit is built to resist the heat and corrosion that come with hard-working exhaust systems. The header flange itself measures a substantial 3/8-inch thick, providing a rigid, warp-resistant mounting surface that keeps your connection tight over the long haul. At 3.00 inches in height, it fits cleanly into a wide range of header and exhaust configurations.
Why the Ball Flange Design Wins
Traditional three-bolt flange connections rely on gaskets that can burn out, crush, and eventually leak. The ball-and-socket geometry of this Flowmaster kit eliminates that weak point entirely. The spherical mating surfaces self-align and seal metal-to-metal, allowing for a small degree of movement and expansion without sacrificing the seal. That means no gaskets to replace and a connection that stays leak-free even as your exhaust heats and cools through countless cycles.
Slip-Fit Connections
Both ends of the kit feature 2.50-inch inside diameter slip-fit connections. The straight-pipe inlet and straight-pipe outlet accept 2.50-inch tubing on each side, making integration into a custom or replacement exhaust system straightforward for an experienced fabricator. Welding is required for installation, so this kit is ideal for shop installs and dedicated DIY builders who want a permanent, professional-grade result.
Key Highlights
- Ball-and-socket flange design for a leak-free, gasket-free connection
- Replaces conventional three-bolt flange-type collector connections
- 16-gauge aluminized steel construction with a gray finish
- Heavy 3/8-inch header flange thickness for a rigid, warp-resistant seal
- 2.50-inch inside diameter slip-fit connections on both ends
- Straight-pipe inlet and outlet with a reversible design
- Mounting bolts/studs included; sold in pairs
Included and What to Expect
This kit is sold in pairs and includes the necessary bolts and studs to complete the connection. The reversible construction adds flexibility to your build, letting you orient the flange to suit your routing. Because welding is required, plan to have the components installed by a qualified fabricator to achieve the best fit and finish.
If you’re chasing a cleaner, more reliable header-to-exhaust joint that ditches gaskets for good, the Flowmaster Header Collector Ball Flange Kit delivers a robust, high-performance solution engineered for real-world abuse.
