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K04 Conversion

To unleash the true potential of your 2.0T, the K04 turbo that is equipped on the Golf R / S3 is a much more robust choice than the factory equipped IHI (KO3) turbo, which runs out of breath mid-way in the RPM range. The HPA K04 Hybrid upgrade offers a higher operational boost range, while still working with the stock componentry; making for a natural and cost-effective upgrade. This K04 Hybrid conversion allows for a seamless integration, without the need for custom fabrications or aftermarket diverter valves.

HPA has now developed our own high performance K04 Hybrid Turbo conversion that allows the factory K03 diverter valve to be installed in the OEM location, without a CNC port adapter. Our K04 Hybrid turbo assembly is one of the most advanced units available in North America, featuring many benefits over the competition, including:

  • All-inclusive hardware kit
  • Cast design for efficient heat transfer
  • Lightweight aluminum compressor for quicker spooling

  • ...

    New for 2016

    With a market flooded with poor quality aftermarket clones and modified OEM assemblies, HPA has taken a fresh approach to supplying its customers with a K04 Hybrid Turbo for the Gen 1 and 2 EA 888 and EA 113 engines at an affordable price.

    Reworked OEM parts result in high costs with no appreciative performance gains. For over two decades, HPA has been building hybrid turbines for the VR6 powertrain, working with the very best suppliers both overseas and domestically. HPA ensures the tightest quality standards are maintained in castings and the assembly of our proprietary CHRA's which feature a larger rotor and steeper turbine fins for increased tq delivery and rpm range.

    HPA’s K04 Hybrid uses a newly cast compressor housing to incorporate the factory placement of the diverter valve. By casting the housings, the costly CNC adapter and housing modifications are no longer required and the associated costs and manufacturing time are removed from the kit assembly. To ensure a good result at first fire up, each HPA K04 Hybrid includes a new diverter valve representing the latest design updates from the factory. K04 Conversion

    Each CHRA is built to the OEM Quality Specifications, with the individual components of the rotating group balanced on a Schenk Balancer. Once fully assembled, each complete CHRA assembly is balanced with a VSR Balancer. The VSR Balancer is used and approved by leading turbo manufacturers Borg Warner, Garrett Honeywell, and IHI, ensuring a perfect assembly.

    To guarantee that the castings, CHRAs and subcomponents would meet the demands of our customers, weeks of dyno testing and months of track sessions were realized across 2015.

    K04 ConversionK04 Conversion

    HPA is one of the only suppliers that has race proven our K04 Hybrid turbo kits. Hundreds of abusive hours were logged as we successfully campaigned a pair of K04 2.0T’s in the 2015 Pirelli World Challenge. We are proud to bring a price competitive advantage to the market with a race proven pedigree.


    Benefits of an HPA K04 Hybrid Turbocharger

      K04 Conversion

    • Gain up to 355HP / 347TQ
    • Direct Replacement (in most cases)
    • Compact Design Allows for Faster Boost Response and Turbo Longevity
    • Turbo Muffler Delete for Smoother Exhaust Gas Flow
    • Simplified Design for Ease of Install
    • Diverter Valve in OEM Position
    • Block-off plate for PCV system (TSI)
    • Quicker Compressor Spool
    • Higher Output Across the Full RPM Range




    • K04 Specific TSI ECU file based on our race winning SCCA World Challenge Touring Cars


    K04 Bundle Options

    K04 Conversion
    As the factory IHI/KO3 runs out of breath at 5500rpm, the performance advantage of the K04 can be maximized by adding HPA’s Cast 2.0 Short Runner Intake Manifold. As the K04 pumps more air from 5500 RPM to redline, the HPA intake will support this demand by flowing 12-24% more air into each individual intake valves set. With the 2.0 Intake Manifold’s 42% larger intake plenum, initial throttle demand will be met with greater volume, allowing your software calibrator to develop more low end TQ. Take advantage of HPA’s race developed calibrations to fully maximize the RPM band of your 2.0T.



    LONGITUDINAL VERSUS TRANSVERSE DESIGN

    The two different layouts simply define the manner in which the engine is mounted in the chassis of your vehicle. A transverse design simply means the crankshaft of the engine is aligned perpendicular to the length of your vehicle as seen in most FWD cars. This transverse drivetrain layout is seen in most modern 2.0L Volkswagen cars on the road today. Longitudinal means the opposite where the crankshaft of your vehicle is parallel with the length of the car, allowing for efficient implementation of RWD and AWD drivetrains. An example of this layout can be seen in most Quattro equipped vehicles.

      Make

    Model

    Layout

         

      Audi

    A4, A5 (B8)

    Longitudinal

      Audi

    A6 (C6)

    Longitudinal

      Audi

    Q5 (8R)

    Longitudinal

      Audi

    A3 (MK2)

    Transverse

      Audi

    Q3

    Transverse

      Audi

    TT (MK2)

    Transverse

      Seat

    Altea

    Transverse

      Seat

    Exeo

    Longitudinal

      Seat

    Leon (MK2)

    Transverse

      Seat

    Toledo (MK2)

    Transverse

      Make

    Model

    Layout

         

      Skoda

    Octavia, VRS (MK2)

    Transverse

      Skoda

    Superb (B6)

    Transverse

      Volkswagen

    Beetle

    Transverse

      Volkswagen

    CC

    Transverse

      Volkswagen

    EOS

    Transverse

      Volkswagen

    Golf, GTI (MK5/6)

    Transverse

      Volkswagen

    Jetta, GLI, Bora (MK5/6)

    Transverse

      Volkswagen

    Passat (B6)

    Transverse

      Volkswagen

    Scirocco

    Transverse

      Volkswagen

    Tiguan

    Transverse
    Transverse application installation guide: K04 Transverse Installation Guide
    Audi A4 (B8) requires a mandatory HPA downpipe for fitment.

      Package

    Part#

    TRANSVERSE

    LONGITUDINAL

           

      K04 Turbo Conv. 2.0L

    HVA-240-HW

    $1500

    $1600

      K04 Turbo Conv. 2.0L
      + HPA Tune

    HVA-240-HW
    HVA-ECU-K04

    $2199

    $2299

      K04 Turbo Conv. 2.0L
      + HPA Tune
      + OnePORT Flash Dongle

    HVA-240-HW
    HVA-ECU-K04
    HVA-1P

    $2349

    $2449

      K04 Turbo Conv. 2.0L
      + HPA Manifold

    HVA-240-HW
    HVA-550

    $2449

    $2569

      K04 Turbo Conv. 2.0L
      + HPA Manifold
      + HPA Tune

    HVA-240-HW
    HVA-550
    HVA-ECU-K04

    $3149

    $3269

      K04 Turbo Conv. 2.0L
      + HPA Manifold
      + HPA Tune
      + OnePORT Flash Dongle

    HVA-240-HW
    HVA-550
    HVA-ECU-K04
    HVA-1P

    $3299

    $3419