K03 Hybrid Racing Turbo for 1.8T | Audi / VW / Skoda / Seat | 260–280 PS

Serious Performance for the Legendary 1.8T Engine

The VAG 1.8T 20V turbo engine is one of the most iconic tuning platforms ever built. If you want more power while retaining quick response and everyday usability, the K03 Hybrid Racing Turbo is the ideal bolt-on upgrade.

Built using the factory K03 / K03s turbocharger as the base, this hybrid conversion uses larger K04-064 internals for significantly improved airflow and power potential while maintaining compact packaging and excellent spool characteristics.

Capable of delivering 260–280 PS with proper supporting modifications and ECU tuning.

Key Benefits

• Supports 260–280 PS

• Fast spool and responsive boost

• Strong mid-range torque

• Excellent street performance

• Compact OEM-based fitment

• Great upgrade over stock K03 / K03s

Internal Upgrades Included

Professionally modified with performance components:

• K04-064 turbine wheel

• K04-064 compressor wheel

• Enlarged / machined housings

• Reinforced racing bearing system

• Precision-balanced rotating assembly

• Flow-optimised hybrid design

Installation Note

Important: This hybrid turbocharger features an enlarged inlet to maximize airflow. An intake system upgrade (oversized TIP/silicone intake hose) is required for installation, as the stock intake pipe will not fit the larger compressor housing.

Performance Characteristics

This turbo is designed for owners who want real gains without excessive lag.

Expect:

• Rapid spool-up from low RPM

• Strong mid-range acceleration

• Better top-end pull than stock K03

• Excellent drivability for daily use

• Ideal street and fast-road setup

Specification	Details
Brand	Hybrid Turbo
Engine Compatibility	VAG 1.8T 20V Longitudinal
Base Turbo	K03 / K03s
Internal Upgrade	K04-064 Turbine + Compressor
Power Output	260–280 PS
Bearing Type	Reinforced Racing Bearings
Fitment	Intake upgrade required (Oversized TIP)
Inlet Size Required	51 mm
Max Boost Pressure*	Approx. 1.6–1.9 bar

Waga	5 kg
Product type	Complete Turbo
Power range	280HP

Vehicle Compatibility

Vehicle	Engine Code	Displacement
Audi A4 B5	—	—
Audi A4 B6	—	—
Audi A6 C5	—	—
Seat Exeo	—	—
Skoda Superb Mk1	—	—
VW Passat B5	—	—

If unsure about compatibility, contact us with VIN number before ordering.

⟶ Warranty
Every upgraded turbocharger comes with a 12-month warranty with no mileage limit.

⟶ Lead Time & Shipping
We typically need around 2 weeks to complete and dispatch your upgraded unit. In more complex cases, allow up to 3 weeks (turbo upgrades demand precision, and our machining process is not something we rush).

Shipping costs and carriers:

• European Union: €25 via DPD
• United Kingdom: €49 via DHL
• Rest of the World: €99 via UPS

Average delivery time: 3–14 working days.

⟶ Full Insurance
Every parcel is fully insured from our workshop to your door.

⟶ Don't See Your Turbo Listed?
Our catalogue is just a fraction of what we can do. Contact us, our development team is constantly working on new models and we can likely build what you need.

⟶ Required Information at Checkout
To ensure your turbocharger is built correctly, please include the following when placing your order:

• Engine code
• Car model
• Stock power output
• VIN number

⟶ Which Option Is Right for You?

• Just Upgrade: You send us your existing turbocharger and we modify it. The unit must be genuine and free of cracks.
• Complete Turbo: We supply a fully built, ready-to-install turbocharger set. Nothing to send, just order and fit.

• Turbo Modification Service (Core Exchange Type)
  This listing is for the modification of your original turbocharger. You must send your turbocharger to us for upgrade.
• Turnaround Time: up to 14 working days after receiving your turbo.
• Ready-built turbocharger may be available separately after prior arrangement.
• If the electronic actuator/controller is damaged, repair/replacement is not included.
• If no old turbo is sent, a refundable core deposit applies.