Weld Fittings (Weld Els) - 321 Stainless

Ace Race Parts' 321 Stainless Steel Pipe is the go-to choice for fabricators working on high-temperature turbo manifolds. Trusted by some of the most recognized names in the manifold fabrication industry, 321 Stainless is built to endure extreme temperature fluctuations, making it perfect for high-horsepower drag and track cars. It can handle operating temperatures as high as 1,652°F without breaking a sweat.

If your manifold is exposed to prolonged high temperatures, like in a track car that spends extended time at wide open throttle (WOT), or if it experiences large temperature swings, as in a drag car that heats up to max temps and then cools down multiple times a day, 321 Stainless is your best bet over 304 Stainless.

SIZING NOTE: All of our pipe size fittings are listed by nominal size, not exact size. Please keep in mind that Nominal Pipe Size (NPS) doesn’t represent the actual OD or ID of the item. Pipe size material is only compatible with other pipe size materials and won't work with mandrel bends, tubing, or other tube size items. If a product on our website references a size with a decimal (e.g., 1.500"), it’s referring to tube size material. If the size is shown with a fractional size or without a decimal (e.g., 1-1/2"), it’s referring to pipe size material. Be sure to check the data on each product page to ensure you order the correct size.