RacingLine Turbocharger Inlet (EA888 Gen4) - Audi TTS Quattro 8S

RacingLine Turbocharger Inlet has been engineered as a simple upgrade to significantly increase air flow into the turbocharger. If you’re running a high-flow intake, the restrictive factory inlet pipework is the next obvious bottleneck to address.

Why the factory inlet holds back - From the factory, air is forced through a narrow, corrugated plastic ‘bellows’ pipe before being squeezed down into a tight plastic turbo inlet. That tapered shape and rough internal surface disrupts airflow just before it reaches the turbo (exactly where smooth, unrestricted flow matters most). The end result is a limit on how much air the turbo can actually breathe in, no matter how good the intake is upstream.

What the RacingLine kit changes - This is a matched two-piece kit comprising a CNC-machined Turbo 90 Inlet and a reinforced silicone turbo inlet hose. Together they replace both restrictive factory components with a smooth, large-diameter path straight into the turbo. The internal diameter increases from the factory 74mm up to 84mm, which is a significant jump that’s only possible by upgrading both parts together.

The Turbo 90 inlet features an internal velocity stack (a shaped lip that helps guide air smoothly into the turbo inlet), which improves the consistency of airflow as the turbo spools. In practice, that means sharper boost response and a more linear feel when you get on the throttle.

Realistic expectations - On its own, a turbo inlet upgrade won’t transform a standard car. Its real value comes when paired with a high-flow intake system and/or an ECU tune – that’s when the factory inlet becomes the limiting factor and this kit allows the rest of the hardware to actually do its job. Think of it as removing the final restriction between the intake and the turbo.

Designed to maximise airflow.

Key Features:

• Two-piece matched kit: Turbo 90 Inlet plus reinforced silicone hose
  Internal diameter increased from 74mm to 84mm for genuine airflow gains
  Internal velocity stack design for improved turbo response
• CNC-machined from T6-6061 aircraft-grade aluminium with a Viton O-ring seal
  Silicone hose is reinforced to resist deformation under heat and boost pressure
  
• Straightforward installation using basic hand tools, typically around 30 minutes
  

Fitment:
Designed specifically for EA888 Gen.4 ‘Evo’ engines producing 300-320PS and fitted with a Continental turbo. This includes popular models such as the Volkswagen Golf R MK8, Golf  GTI Clubsport MK8, Audi S3 Quattro 8Y and Cupra Formentor VZ. The Continental turbo specification is critical. This kit will not fit IHI-equipped variants.

note: image is for illustration purposes and may differ on delivery

Information coming soon.