AIRTEC Motorsport SMIC Intercooler Re-Core & Refurb/Rebuild/Repair Service (Send-In/Mail-In, UK) for Audi RS6 C5 4.2 BiTurbo V8 - Twin Side-Mount Charge Coolers - OEM End Tanks Retained, Pro-Series Black, TIG-Welded Upr

Re-Core SMIC Refurbishment for Audi RS6 C5 4.2 Biturbo V8 — OEM Tanks Retained, Pro-Series Black

Give your RS6 C5 the cooling refresh it deserves with AIRTEC Motorsport’s core replacement service. This mail-in refurbishment revitalises tired or leaking twin side-mounted charge coolers by installing fresh, free‑flowing cores while keeping your factory alloy end tanks, brackets and original ducting geometry intact. Finished in Pro-Series black for a subtle OEM-plus look that resists road grime and corrosion.

If your RS6 is suffering from rising intake temps, heat soak on spirited runs or recurring boost leaks, this re-core solution restores confidence and consistency. It is a straight send-in service using your own units, perfect for owners who want improved charge cooling without changing fitment or compromising factory packaging.

Key advantages

• Lower intake air temperatures to combat heat soak and stabilise performance on the road.
• Free-flowing uprated cores to recover response compared with tired original coolers.
• Original mounting, pipework alignment and air guides preserved by reusing your OE tanks.
• Pro-Series black coating for a discreet, durable, OEM-style finish.
• Leak-tested and verified under pressure for dependable results.

What the service includes

1. Careful removal of the old cores from your twin side-mount assemblies.
2. Cleaning, preparation and repair of the cast aluminium end tanks ready for welding.
3. TIG-welding brand-new high-flow intercooler cores to your prepped tanks.
4. Installing new 5 mm side plates set to the correct spacing for factory shrouds and air scoops.
5. Pressure verification to ensure integrity and reliability.
6. Pro-Series satin black powder coat finish.
7. Completed with AIRTEC Motorsport branding.

Compatibility

For Audi RS6 C5 4.2 biturbo V8 models equipped with twin side-mounted coolers. Please contact us before ordering so we can confirm details and scheduling.

Turnaround

Estimated lead time is approximately 2 to 3 weeks from the day we receive your intercoolers.

Fitting and support

Prefer professional removal and refit? MJ Modifications in Warwickshire can take care of everything, from taking the coolers off your car to reinstallation once re-cored. Request a quote at info@mjmodifications.co.uk.

Tested by us, loved by customers

We have supplied and fitted this re-core on RS6 C5 builds and the feedback has been excellent. Owners report restored boost confidence, reduced heat soak and consistent charge temps during enthusiastic driving.

Important information

• This is a send-in refurbishment of your original coolers, not a new replacement pair.
• Condition of your units may affect turnaround time.
• Please get in touch before purchase to arrange logistics.

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