Description
Exhaust manifold bend cutting jig – simple concept, massive impact on quality. These two billet jigs are some of the most useful tools in the F-tune Performance workshop. If you build exhaust manifolds by hand, getting your cuts precise and repeatable is everything. These jigs make that easy.
What Are These Jigs?
This is a matched set of two CNC machined exhaust manifold bend cutting jigs – one for short radius mandrel bends and one for long radius mandrel bends. Both are machined from billet aluminium, engraved with degree markings and the F-tune Performance logo, and drilled and tapped with mounting holes for different clamping setups.
How They Work
The jigs are designed to be used in a cold saw – a pivoting saw with a circulating blade and cutting fluid feed, capable of cutting tube and pipe cleanly and accurately. You clamp your mandrel bend into the jig at the desired degree, place the jig in the cold saw, and cut. The result is a perfectly angled cut every single time.
For example, if you need a 30 degree bend from a long radius 90 degree mandrel bend, you set the long radius jig to 30 degrees, clamp it in the saw and cut. No guesswork, no measuring, no wasted material.
Why This Matters for Exhaust Manifold Building
Building exhaust manifolds by hand is a skilled job. Every bend needs to meet its neighbour at the correct angle for the manifold to flow properly and look right. Without a jig like this, getting consistent cuts across multiple pieces is time consuming and error prone. With this set, repeatability is built into the process.
CNC Machined to Last
These jigs are not improvised workshop tools. They are precision CNC machined from billet, engraved and finished to a professional standard. Every detail – the degree markings, the mounting holes, the F-tune Performance branding – is there for a reason. Tools like these reflect the same attention to detail we bring to every build and every custom component we produce.
Interested in custom tooling or workshop solutions? Get in touch with F-tune Performance.
