Specialised StainlessFabrication · Patumahoe
Custom TIG-welded 304 stainless steel exhaust system fabricated by Specialised Stainless

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Custom stainless exhausts, TIG welded to fit.

Mandrel-bent 304 stainless exhaust systems and components for hot rods, classics, 4x4s, boats and stationary engines. Built on the vehicle so it fits, clears everything and sounds the way you want.

304 stainlessMandrel bends, TIG welded
Built on the vehicleFits and clears first time
Any applicationRoad, off-road, marine, plant

The range

From a single tailpipe to a full custom system.

The workshop has built exhausts for hot rods, trucks and fishing boats for years. If it has an engine and needs a pipe that does not exist off the shelf, that is the job.

Full custom systems

Headers-back or cat-back systems in 304 stainless with the muffler and resonator of your choice.

Hot rod & classic

One-off systems for hot rods, classics and engine swaps where nothing bolts on.

4x4 & ute

High-clearance systems, snorkel-side exits and repairs after lifts and body work.

Marine & plant

Wet and dry marine exhausts, generator and machinery exhausts, silencers and heat shields.

Indicative pricing

Indicative exhaust pricing.

Indicative range only. Final pricing depends on pipe size, length, the number of bends, mufflers and how much of the original system can stay.

Custom stainless exhaust

From a repair section to a full twin system.

$1,500from, + GST

Full systems typically $1,500–$6,000 + GST; repair sections from $350

  • 304 stainless mandrel bends
  • TIG welded, back-purged joints
  • Mufflers and resonators to suit
  • Hangers, flanges and heat shields

Muffler swaps and repair sections start from around $350 + GST; twin systems, headers and polished finishes sit at the upper end.

Questions

Common questions about custom stainless exhausts.

Why stainless rather than mild steel?

A mild-steel exhaust rusts from the inside out in a few years. 304 stainless lasts the life of the vehicle, which is why it suits classics, boats and anything you plan to keep.

Do you do headers and manifolds?

Yes, for most engines. Tube headers are built to the engine and chassis, and we can also repair cracked cast manifolds in some cases.

Can you make it quieter or louder?

Both. The muffler and resonator choice and the pipe diameter set the tone, and we will talk through what you want before anything is cut.

How it works

Spec, quote, fabricate, fit.

01

Spec

We confirm size, materials, the loadings or spec and how it will be used.

02

Quote

It is all priced before any steel is cut, so there are no surprises.

03

Fabricate

Built in the Patumahoe workshop to the agreed spec.

04

Fit

Delivered, fitted or installed and checked over before handover.

Got a job in mind? Let’s talk it through.

Send through photos, rough measurements and how it’ll be used — we’ll come back with a practical next step and a price.

Call or text021 2555 443Text
WorkshopPatumahoe, Auckland
Request a quote