Alunox Craftsmanship

High quality, craftsmanship and precision are characteristic of all our manifolds. These are generally manufactured in 304L Stainless Steel which is stable to 600ºC but for turbocharger manifolds we prefer 321 Stainless because of its high Nickel content and the presence of Titanium. Correct metal thickness and precision welding ensures that our turbo manifolds resist the fractures typically caused by the higher heat ranges of turbo engines.

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Road & Race

Stainless steel is our metal of choice for road and race vehicles. We can use either 304L or 321. We find that with the correct metal thickness and with precision welding we can give a full 12 months guarantee for the systems we fabricate.

We produce stainless systems and parts for the following vehicles and smaller aeroplanes.


Racecars: Formula, hillclimb, saloons, sprint, drag, grasstrack, go cart etc.
Kitcars: All makes including home-made.
Classic Cars: Replica systems including individual silencers, manifolds and bends etc.
Vintage cars: We can duplicate any system on any car.
Fast Road: Bespoke systems to your design or ours.
- Replica factory systems.
- Track day systems with or without catalytic converter.
- Race systems in various diameters/lengths, matching manifolds etc.