This weekend we carried out an exciting project in our North Walsham workshop – a full AMG A45 remap and exhaust upgrade. The Mercedes-AMG A45 is already one of the fastest hot hatches on the road, but with a few carefully chosen upgrades, we took it to another level.
What we fitted
- Milltek Exhaust System – a high-performance stainless steel exhaust, giving the car a more aggressive sound, reduced back pressure, and improved efficiency.
- Stage 1 ECU Remap – delivering sharper throttle response and more power. This AMG now enjoys an incredible additional 105 Nm of torque, transforming how it feels on the road.
The combination of a Stage 1 remap and Milltek exhaust not only boosts performance but also enhances the driving experience, giving this AMG A45 an unmistakable presence.





The customer’s feedback
Our customer Joshua left us a fantastic recommendation after collecting his car, and we’re thrilled he’s enjoying the upgrades. It’s always great to see the difference our work makes, both in performance and customer satisfaction.

Performance tuning in Norfolk
At Coastal Motorsport, we specialise in performance upgrades, ECU remapping, and exhaust systems for a wide range of vehicles. Whether you own an AMG, BMW, Audi, or hot hatchback, we can tailor a package to suit your driving style.
We use trusted brands such as Milltek, Scorpion, and Remus, ensuring every exhaust we fit meets the highest standards.
👉 Want to know more about Milltek? Visit their site here: Milltek Sport Official
Book your performance upgrade
If you’re considering a Stage 1 remap, Milltek exhaust upgrade, or both, book your car in with our team today.
📞 01692 218 390
📱 07457 404 258 (WhatsApp)
📧 info@coastalmotorsport.co.uk
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