K03 Billet Upgrade Turbo Charger for Volkswagen Golf MK6, Jetta 1K 1B, Tiguan 5N

Billet Upgrade Turbo Charger

***Please check turbo numbers and OE numbers before ordering***

Our advanced assembly techniques ensure seamless integration of bearings, impellers, and rotor assemblies, forming a powerhouse of efficiency. Every turbocharger is rigorously tested under full-speed simulations to guarantee optimal balance and peak performance. 

Vehicle Fitment

• Volkswagen Golf MK6 2.0L CCZB FWD MT DCT (10/2009 - 08/2013)
  Sub-Models Include GTI 155 TSI, GTI ADIDAS
• Volkswagen Jetta 1K 1B  2.0L CAWB FWD DCT (11/2009 - 07/2014)
  Sub-Models Include 147 TSI HIGHLINE
• Volkswagen Tiguan 5N 2.0L CCZC AWD MT DCT (11/2009 - 07/2011)
   Sub-Models Include 125 TSI
• Volkswagen Tiguan 5N 2.0L CCZA AWD DCT (09/2010 - 07/2011)
  Sub-Models Include 147 TSI
  
• Volkswagen Tiguan 5N 2.0L CCZB AWD DCT (10/2011 - 09/2016)
  Sub-Models Include155 TSI, 155 TSI R-LINE
  
• Volkswagen Tiguan 5N 2.0L CCZD AWD MT AT DCT (10/2011 - 09/2016)
  Sub-Models Include132 TSI, 132 TSI PACIFIC
  

Sizing and Specifications 

• Turbo Model: K03
• Turbo Number: 53039880290

OE Equivalent Numbers

• 06J145713K
• 53039880290

What's Included  

• Turbo Charger Assembly

What Is a Billet Upgrade?

A billet upgrade refers to the use of high-quality, machined billet components in the construction of parts, such as turbochargers. The term "billet" means the part is made from a single block of material (usually aluminum or steel) that is machined down to the final shape, as opposed to being cast or forged.

Key Benefits of a Billet Upgrade:

Strength and Durability:

Billet components are stronger than cast parts because they have a denser, more uniform grain structure. This makes them better suited for high-performance and heavy-duty applications.

Precision and Customization:

CNC machining used for billet parts allows for more precise designs and better airflow optimization, enhancing turbo performance.

Improved Heat Resistance:

Billet materials often handle heat and pressure more effectively than cast alternatives, which is critical for turbochargers operating at high RPMs and extreme conditions.

What Does The Turbo Model Number Mean?

K03 Turbocharger

The K03 is a compact, high-performance turbocharger manufactured by BorgWarner. It is widely used in both gasoline and diesel engines, offering a balance of efficiency, power delivery, and durability. The K03 turbocharger is a popular choice for OEM applications in small to mid-sized engines and is also commonly upgraded for aftermarket performance tuning.

Breakdown:

1. K03:

   • Represents BorgWarner’s K-Series turbochargers, designed for small-displacement engines.
   • Known for its reliability and efficiency in both stock and tuned applications.

2. Compressor Wheel Size:

   • The K03 turbo features a 48-50mm exducer diameter, optimized for quick spool-up and efficient airflow.

3. Turbine Housing A/R Ratio:

   • The A/R (Area/Radius) ratio is optimized for a balance of response and top-end performance.
   • Typically found with a 0.36 to 0.42 A/R, offering fast boost response for small engines.

4. Bearing System:

   • Uses a journal bearing system for durability and cost-effectiveness, though some upgraded versions feature ball bearings for improved response.

Applications:

The K03 turbocharger is commonly used in:

• Passenger Vehicles:

  • Found in small to mid-sized gasoline and diesel vehicles, including Audi, Volkswagen, and Ford models.

• Performance Upgrades:

  • Popular for aftermarket tuning, especially on 1.8T and 2.0T engines, offering increased power and boost potential with minimal modifications.

• OEM Applications:

  • Used as a stock turbo in many Volkswagen Group vehicles, providing a balance of efficiency and performance.

Key Features:

• Compact and Efficient Design:

  • Optimized for small-displacement engines, ensuring quick spool times and smooth power delivery.

• Durable Journal Bearing System:

  • Ensures longevity and reliability, making it an ideal choice for factory-installed turbos.

• High-Flow Compressor and Turbine:

  • Designed for efficient boost delivery, improving engine responsiveness and power output.

• Tuning and Upgrade Potential:

  • Can be upgraded to hybrid versions (such as K03S and K04) for increased airflow and performance gains.