What does 'mandrel bent' mean for exhaust tubing?

Mandrel bending uses a "mandrel" inside the tube during the bending process. This prevents the tube from collapsing or kinking, ensuring the inner diameter stays consistent throughout the bend. This helps maintain smooth exhaust flow and prevents restrictions.

What is the bend radius (1.5D) on this tubing?

The '1.5D' refers to the bend radius relative to the tube's diameter. In this case, the centerline of the bend has a radius of 1.5 times the 2.50-inch tube diameter, which is approximately 3.75 inches. This creates a relatively smooth, gradual curve.

What is this tubing typically used for?

This type of tubing is commonly used by fabricators and DIYers for custom exhaust system construction. It's ideal for creating specific bends needed to route exhaust around chassis components, connect different exhaust sections, or build headers and downpipes.

Stainless Bros 45 Degree Mandrel Bend Tubing 2.5" 601-06326-

Name: Stainless Bros 2.50in Diameter 1.5D / 3.75in CLR 45 Degree Bend 5in leg/8in leg Mandrel Bend
Brand: Stainless Bros
SKU: stainless-bros-stainless-bros-2-50in-diameter-1-5d-3-75in-clr-45-degree-bend-5in-t14-314173
Price: 39.92 USD
Availability: InStock

Stainless Bros 2.50in Diameter 1.5D / 3.75in CLR 45 Degree Bend 5in leg/8in leg Mandrel Bend

$39.92

Only 4 left in stock

Stainless Bros 2.50in diameter 45 degree mandrel bend tubing for custom exhaust fabrication.

Key Features

Mandrel bent tubing maintains consistent diameter through the bend for improved exhaust flow.
Features a 45-degree bend with a 1.5D radius (3.75 inch centerline radius).
Tubing has a 2.50 inch outer diameter.
Includes one 5-inch leg and one 8-inch leg for versatile installation.
Constructed from steel for durability in exhaust applications.

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Product Details

If you're building a custom exhaust system, getting the bends just right is key to a clean install and good flow. This piece from Stainless Bros is a 45-degree bend with a 2.50-inch outer diameter, perfect for fabricating custom exhaust sections where you need to change direction smoothly.

It's made with a 1.5D bend radius, meaning the center of the tube bends on a radius that's 1.5 times the tube's diameter, giving you a fairly tight but still smooth curve. The legs are 5 inches and 8 inches long, giving you some flexibility in how you connect it into your system. Because it's mandrel bent, the tube maintains its shape and diameter through the bend, which helps prevent restrictions and keeps exhaust gases flowing efficiently. This is important for performance and sound.

This tubing is a solid option for custom exhaust work, whether you're replacing a section, rerouting for clearance, or building something entirely new. Just remember to measure carefully and plan your cuts before welding.