Available to Order
Not sure which one? Ask us to confirm fitment first →For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.
| Manufacturer | MST Performance |
| Product Type | Cold air intake system |
| SKU | MST-AD-A405 |
| Material | Aluminium intake pipework |
| Vehicle Applications | Audi A4 (B9) 2.0 TFSI no MAF sensor 2015+; A4 (B9) 2.0 TFSI Quattro no MAF sensor 2015+; A5 (8T) 2.0 TFSI no MAF sensor 2015+; A5 (8T) 2.0 TFSI Quattro no MAF sensor 2015+ |
| Included Items | All fittings for a direct OEM-replacement install |
Audi's B9-generation 2.0 TFSI came in two intake configurations, and this MST Performance cold air intake system is the version for cars without a MAF sensor - including Quattro variants. It replaces the restrictive standard air box with precision-engineered aluminium pipework designed for faster, smoother airflow into the turbo, giving the A4 or A5 a cleaner intake route and an induction note the standard car never offers. Four no-MAF applications from 2015 on are covered, with all fittings for a direct OEM-replacement install.
Fitting the wrong configuration is the classic B9 intake mistake, which is why MST split the kits. With the no-MAF version matched to the right car, the engine gets MST's faster-air, lower-turbulence design and the driver gets the response feel and intake note the restrictive standard box hides. Top-quality components throughout, on standard or already-tuned cars.
Everything turns on one check: does your intake pipe carry a MAF sensor? This kit fits A4 (B9) and A5 2.0 TFSI cars without one, front-wheel drive or Quattro, from 2015 on. If your car has the sensor, use the MST with-MAF version instead. Confirm before ordering - the two layouts are not interchangeable.
| Manufacturer | MST Performance |
| Product Type | Cold air intake system |
| SKU | MST-AD-A405 |
| Material | Aluminium intake pipework |
| Vehicle Applications | Audi A4 (B9) 2.0 TFSI no MAF sensor 2015+; A4 (B9) 2.0 TFSI Quattro no MAF sensor 2015+; A5 (8T) 2.0 TFSI no MAF sensor 2015+; A5 (8T) 2.0 TFSI Quattro no MAF sensor 2015+ |
| Included Items | All fittings for a direct OEM-replacement install |
Check the pipe leaving the air box for a wired sensor module - no module means the no-MAF layout. A garage or Audi specialist can confirm in minutes if you are unsure.
No - both front-wheel drive and Quattro cars are covered here. The deciding fact is the missing MAF sensor, not the driveline.
The two kits are built around different intake layouts, so the wrong one will not install correctly. Confirm the sensor question first and the rest is a direct OEM-replacement fit.
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.
