MST Performance Audi A4/A5 (B8) 1.8 & 2.0 Engine Air Intake Kit (No MAF) – MST-AD-A402
This intake kit from MST Performance is a direct replacement for the standard airbox on the Audi A4 and A5 B8 with 1.8 and 2.0 petrol engines (2013-2015). It is designed to improve airflow to the turbocharger, which can result in better throttle response and a modest gain in power on both standard and already-tuned vehicles.
Please note: this kit is the No MAF version. MAF refers to the Mass Air Flow sensor – a sensor that measures the amount of air entering the engine. This kit does not include provisions for a MAF sensor, so it is only suitable for vehicles that do not use one, or where the MAF has been removed as part of a tune. Confirm compatibility before purchasing.
What It Does
The factory airbox is built to balance noise, cost, and emissions rather than outright performance. Replacing it with this MST Performance kit allows a greater volume of cooler, denser air to reach the turbocharger more freely. The result is improved throttle response – meaning the engine feels more immediate and responsive when you press the accelerator – along with a more pronounced induction sound under load.
MST Performance quote dyno-tested gains of 12-14bhp, though real-world results will vary depending on the vehicle’s condition, state of tune, and other factors. On a standard car these figures represent a noticeable improvement; on a remapped or otherwise modified engine, the intake helps ensure the engine can breathe freely enough to make the most of those modifications.
What’s Included
- Black powder-coated heat shield – helps keep hot engine bay air away from the intake
- Black silicone inlet pipe – connects the filter to the turbo inlet smoothly
- Red dry pleated high-flow air filter – easy to clean and maintain, no oiling required
- Silicone joiner
- Full fitting hardware and step-by-step instructions
Installation
This kit is designed to be fitted at home with basic tools. Step-by-step instructions are included to guide you through the process. That said, if you are unsure about any aspect of the installation, particularly regarding the MAF sensor compatibility, it is strongly recommended to have the kit fitted by a qualified mechanic or performance specialist.
This kit is designed for the Audi A4 and A5 B8 platform with 1.8 and 2.0 petrol engines. Use the vehicle lookup tool on this site to confirm fitment for your specific model, or check the Vehicle Fitment tab for the full compatibility list.
Additional Information
| Weight | 4 kg |
|---|---|
| Dimensions | 62 × 48 × 27 cm |
| Brand |




