Hot-side fabrication · tight-space solutions

Where heat, flow and space all collide.

Custom downpipes and turbo hardware engineered around the actual engine bay, not adapted from a part that was almost right.

Plan my build
WorkDownpipes + manifolds
MethodTIG fabrication
FitEngine-bay specific
CalibrationATM on-site

Downpipes built for the combination

The area immediately after the turbo is often crowded by steering, firewall, drivetrain, heat shields, sensors and the rest of the exhaust. A high-flow result is useful only if it also fits, seals, clears and survives the environment.

We design the path around the actual vehicle and hardware. Flanges, transitions, flex sections, wastegate routes and sensor positions are considered before final welding.

Custom twin stainless high-flow downpipes by SNIPER Racing

Turbo conversions and manifolds

When the turbo, engine or chassis was never sold as one factory combination, there is no catalogue route to copy. We can fabricate manifolds, connection pipes, screamer pipes and supporting sections for suitable performance projects.

  • Turbo and flange position confirmed against the full engine bay
  • Heat and nearby components considered in the route
  • Wastegate and sensor placement planned for serviceability
  • Transitions formed to avoid abrupt, compromised joins
  • Associated exhaust and charge-air routes assessed together

Fabrication and calibration belong in one conversation

Changing the downpipe or turbo can alter airflow, boost behaviour, exhaust temperature and what the ECU needs to control. For supported vehicles, ATM Chiptuning Garden Route can log and calibrate the result within the same workshop group.

We do not promise a power figure from the pipe alone. The final outcome depends on the engine, turbo, fuel system, intercooling, exhaust, calibration and mechanical condition as one combination.

Packaging firstThe route is proven against the real engine bay and driveline.
Sensor-awareRelevant bungs and positions are planned before final welding.
Heat-consciousSensitive components and service access remain part of the brief.
Calibration connectedATM can handle supported software and verification after fabrication.

Specific questions

Before we start.

Send the exact vehicle if your question depends on the platform or current hardware.

Can you copy a downpipe from a photograph?

A photo may help explain the idea, but final fabrication is based on the actual vehicle, turbo, flanges, clearances and sensor requirements.

Do you build turbo manifolds?

Yes, for suitable custom performance projects. We need the engine, turbo, chassis and intended use before confirming the scope.

Is tuning required after a downpipe?

It depends on the platform and the rest of the hardware. ATM Chiptuning will advise what is supported and required; we do not use one blanket answer for every vehicle.

Can you guarantee a power increase?

No honest fabricator should guarantee a figure from one component without the complete vehicle data. We build the hardware to support the combination and use measurement and calibration where applicable.

Start with the vehicle

We will recommend the right build.

You do not need to choose technical services from a list. Send the year, make, model, engine and the outcome you want.

Send my vehicle details
WhatsAppPlan my build