What is a mandrel bend and why is it important?

A mandrel bend is created using a flexible mandrel inside the tubing during the bending process. This prevents the tube from collapsing or kinking, ensuring it maintains its full diameter throughout the bend. This is important for smooth exhaust flow and preventing backpressure.

What does 1.5D / 4.5in CLR mean for the bend radius?

The '1.5D' refers to the bend ratio, meaning the center line radius is 1.5 times the tube's diameter. For a 3-inch tube, this results in a 4.5-inch center line radius (CLR). This indicates a relatively tight bend, useful for fitting exhaust in confined spaces.

What is this tubing typically used for?

This type of tubing is commonly used by fabricators and DIY enthusiasts for custom exhaust systems. It's ideal for creating specific bends and routing exhaust around obstacles on various vehicles or custom projects.

Specifications

Brand: Stainless Bros
Part #: 601-07636-8150

Stainless Bros 3in Diameter 1.5D / 4.5in CLR 90 Degree Mandrel Bend w/6.5in Leg

Name: Stainless Bros 3in Diameter 1.5D / 4.5in CLR 90 Degree Mandrel Bend w/6.5in Leg
Brand: Stainless Bros
SKU: stainless-bros-stainless-bros-3in-diameter-1-5d-4-5in-clr-90-degree-mandrel-bend-t14-829046
Price: 54.26 USD
Availability: BackOrder

$54.26

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Stainless Bros is known for quality exhaust components. This 3in 90 degree mandrel bend tubing is for custom fabrication.

Key Features

This is a 3-inch diameter exhaust tubing.
It features a 90-degree mandrel bend.
The bend has a 1.5D (Deep) radius, with a 4.5-inch center line.
Each leg of the tubing measures 6.5 inches long.
Mandrel bending ensures the tube maintains its diameter for improved flow.

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About this part

Product Details

Stainless Bros is known for making solid exhaust components, and this 90-degree mandrel bend is a great piece for anyone building a custom exhaust system. It's made from 3-inch diameter tubing with a 1.5D (Deep) bend radius, which means the center line of the bend is 4.5 inches from the edge of the tube. This tight radius is useful when you need to make a sharp turn in a tight space, like routing exhaust around suspension components or under the chassis. The legs on either side of the bend are 6.5 inches long, giving you plenty of material to work with when welding it into your system.

This piece is a 90-degree bend, so it's perfect for changing direction by a quarter turn. Since it's a mandrel bend, the tube maintains its full 3-inch diameter throughout the bend, which helps keep exhaust flow smooth and unrestricted. This is important for performance, as it prevents the backpressure that can build up in crush-bent tubing where the inside of the bend collapses.