WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The APR K04-001 Turbo System (T2100001) is the definitive "OEM+" upgrade for the VW MK4 1.8T Transverse engine platform. Designed for owners who want a significant increase in power and torque without the complexity of a custom "big turbo" build, this kit utilizes a genuine K04-001 turbocharger. This unit is a direct bolt-on replacement for the factory K03/K03s, providing a broader powerband and more top-end pull while maintaining the lightning-fast spool characteristics of a factory-sized turbo.
The system is a complete package, bundling the hardware with APR’s specialized K04 ECU software. On 93 octane fuel with just an exhaust upgrade, this system is capable of producing 245 HP and 275 LB-FT of torque. The kit also addresses fueling needs by including a 4-bar fuel pressure regulator, ensuring the engine stays safely within its fueling parameters under higher boost. It is a straightforward, reliable solution that transforms the driving dynamics of the MK4 platform.
Features:
- Significant Power Gains: Reach up to 245 HP and 275 LB-FT of torque—a massive leap over factory MK4 1.8T output.
- OEM Fitment: The K04-001 is a "drop-in" turbocharger that mounts directly to the factory manifold and downpipe.
- Comprehensive Hardware Kit: Includes a 4-bar fuel pressure regulator, gaskets, studs, and O-rings to ensure a leak-free installation.
- ECU Software Included: Includes the APR K04 software license to recalibrate your factory ECU for the new hardware (installation by an authorized APR dealer required).
- Reliable Performance: Uses high-quality components designed to withstand years of spirited driving.
Product Contains:
- (1) K04-001 Turbocharger
- (1) 4-Bar Fuel Pressure Regulator
- (1) Manifold-to-Turbo Gasket
- (1) Turbo-to-Downpipe Gasket
- (4) Turbo Outlet Studs
- (1) Compressor Inlet O-Ring
- (1) APR K04 ECU Software License
Software & Compatibility Notes:
- ECU Requirements: Software support is limited to drive-by-wire (DBW) models. It excludes Drive-by-Cable (DBC), ME5 ECUs, and non-port flashable ECUs (e.g., 1999-2001 Beetle Engine Code APH).
- Exclusions: This system is not designed for use on the Audi TT225.
- Installation: Software must be installed by an authorized APR dealer. Please verify ECU compatibility before purchase.
Warranty: This product is supported by a Manufacturer's Warranty. Note: Manufacturer warranty terms are subject to change.
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