Racingline Carbon Fibre Air Intake System – Audi S4/S5 (B9) 3.0 TFSI
The Racingline Carbon Fibre Air Intake System is a direct performance upgrade for the Audi S4 and S5 (B9) fitted with the supercharged/turbocharged 3.0 TFSI engine. It replaces the restrictive factory intake components with a high-flow, cold-air design that feeds the engine cooler, denser air from outside the engine bay. The result is genuine gains in power, torque and throttle response, along with a striking carbon fibre finish under the bonnet.
This kit is one of the most effective bolt-on upgrades available for the 3.0 TFSI platform and pairs especially well with an ECU remap, where the extra airflow allows the tune to deliver its full potential.
TriFoam™ Filter Technology
At the core of the system is Racingline’s TriFoam™ filter, a triple-layer laminate of open-cell polyurethane foam, handmade in the UK. Foam filtration of this type offers an excellent balance between high airflow and effective dust and debris capture, protecting your engine without choking it. Unlike disposable paper elements, the TriFoam™ filter is cleanable and reusable, designed to last the lifetime of the car.
Faster Turbo Response and More Power
Rather than throwing away the factory airbox entirely, Racingline cleverly retains the original lower airbox section and replaces the restrictive lid, filter and air scoop with high-flow components. This keeps installation straightforward while opening up the intake tract significantly.
The benefits you can expect include:
- Increased power and torque across the rev range
- Reduced turbo spool time, in some cases by up to 500rpm
- Sharper throttle response and a more immediate feel on acceleration
- A richer induction note under load, without being intrusive in the cabin
- Greater gains when combined with a higher-output ECU remap
Carbon Fibre Finish
The intake lid and air scoop are produced in genuine carbon fibre, giving the engine bay a clean, motorsport-inspired look. As a fully enclosed intake, it draws cold air from outside the engine bay while keeping hot under-bonnet air away from the filter, which is key to maintaining consistent performance, particularly on warm days or during spirited driving.
Fitment
This intake kit is designed specifically for the Audi S4 and S5 (B9) 3.0 TFSI. Please use the vehicle lookup tool or check the Vehicle Fitment tab to confirm compatibility with your exact model and year before purchase.
What’s in the Box
- Carbon fibre intake lid
- Carbon fibre air scoop
- TriFoam™ high-flow air filter
- All required fittings and hardware for installation
As an authorised UK dealer for Racingline Performance, Progressive Parts supplies only genuine Racingline products, backed by the brand’s full manufacturer support and warranty.
Applications
Please note, customers are wholly responsible for checking fitment for their vehicle.





















