MST Performance / Air Intake Systems & Induction Kits

MST Performance Cold Air Intake System – Audi A4 (B9) – 1.4 TFSI 2016+ | MST-AD-A404

✓ Broad model match - confirm exact fitment
£357.04 VAT included. Shipping calculated for your destination.

Available to Order

Not sure which one? Ask us to confirm fitment first →
Delivery, customs and taxes Know the landed cost before you order

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.

Lead times and urgent orders Check timing before you commit

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.

Fitment checked before you order

Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.

Technical specifications
Manufacturer MST Performance
Product Type Cold air intake system
SKU MST-AD-A404
Vehicle Application Audi A4 (B9) 1.4 TFSI 2016+; Audi A5 (8T) 1.4 TFSI 2016+
Material Aluminium intake pipework
Air Filter Nanofiber dry filter, washable and reusable
Included Items Pipework, filter, heat shield, mounting hardware, instructions

Summary

The entry engine in the B9 A4 deserves better than anonymous motoring. This MST Performance cold air intake for the 1.4 TFSI (2016 on) swaps the factory setup for aluminium pipework and a heat-shielded washable nanofiber filter, giving the small turbo four a livelier feel and an audible induction note. The fitment table also shows the matching A5 1.4 TFSI application, so both body styles are covered by the same part.

Best For

  • B9 A4 1.4 TFSI owners making the single most noticeable bolt-on change
  • Company-car-turned-keeper builds adding character on a sensible budget
  • Drivers pairing efficient small-engine running with a more engaging soundtrack

Key Specs

  • Manufacturer: MST Performance
  • Product Type: Cold air intake system
  • SKU: MST-AD-A404
  • Vehicle Application: Audi A4 (B9) 1.4 TFSI 2016+; A5 1.4 TFSI 2016+ as shown in the fitment table
  • Material: Mandrel-bent 6061 or cast aluminium intake pipework
  • Air Filter: Nanofiber dry high-flow filter, washable and reusable
  • Included Items: Pipework, filter, heat shield, mounting hardware and fitting instructions
  • Fitment type: vehicle-specific, direct OEM replacement

Small Engine, Big Difference

On a modest-capacity turbo engine, intake character is a large share of the driving experience — which is why this is such an effective first modification for the 1.4. Running the 2.0 TFSI B9 instead? MST splits those kits by sensor setup: see the 2.0 TFSI with-MAF kit or the 2.0 TFSI no-MAF kit.

Fitment And Setup Checks

  • Confirm your car is the 1.4 TFSI from 2016 on — B9 2.0 TFSI engines use separate kits split by MAF sensor
  • The table shows the A5 1.4 TFSI 2016+ application under an 8T reference; if your A5's generation label differs, check with us before ordering
  • Fitting instructions are included; professional fitting is the safe route if unsure
Delivery, customs and taxes

Know the landed cost before you order

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.

Lead times and urgent orders

Check timing before you commit

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.

Questions before you order

Frequently asked questions

Is this the right kit for a 2.0 TFSI B9?

No — the 2.0 has its own kits, split by whether the engine uses a MAF sensor. This version is engineered for the 1.4 TFSI.

Does the kit fit the A5 too?

The fitment table includes the A5 1.4 TFSI from 2016 on. If you are unsure how your A5 is labelled, send us the registration and we will confirm.

What ongoing cost does it add?

Effectively none — the washable filter is cleaned around every 20,000 km and replaced around 60,000 km, replacing the cycle of disposable paper elements.

Fitment first

Broad model match - confirm exact fitment

This product has an approved make and model discovery match, but no exact year or generation claim. Check the precise application before ordering.

✓ Broad model match - confirm exact fitment
Need help with this product?

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.

MST Performance Cold Air Intake System – Audi A4 (B9) – 1.4 TFSI 2016+ | MST-AD-A404
MST Performance Cold Air Intake System – Audi A4 (B9) – 1.4 TFSI 2016+ | MST-AD-A404
Available to Order £357.04