Stainless Works 2-1/4in 4-way merge collectors with 4in OD outlet

This Stainless Works merge collector is built to help you connect your exhaust primaries into a single, larger pipe. You get the collector itself, featuring a reverse cone design and a 4-inch outside diameter outlet. It's designed with 2-1/4 inch inside diameter slip-fit inlets, meaning your exhaust pipes slide into these collectors, making for a cleaner installation without needing to weld the primaries directly to the collector body. This setup is ideal for custom exhaust builds where you're routing multiple pipes into one.

What sets this collector apart is its construction. It's made from 304 stainless steel, which is a solid choice for exhaust components because it holds up well against rust and corrosion, especially in the harsh environment under your vehicle. All the welds are TIG welded, a process known for creating strong, durable joints that can handle the heat and vibration of an exhaust system. This attention to build quality means it should last a long time on your car.

Because this is a universal part, you'll need to plan how it fits into your specific exhaust system. It's designed to connect four 2-1/4 inch pipes into a single 4-inch outlet, giving you a good starting point for creating a custom exhaust flow. Stainless Works backs this collector with a limited lifetime warranty, and it's proudly made in the USA.