K04-001 XLC E05 Hybrid Turbo Seat Ibiza Cupra 6L Polo GTI Golf MK4 GTI 1.8T 20V

XS-POWER

$429.00
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SKU:
KO4-001 FORGE XLC
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IN STOCK! Brand New XS-POWER K04-001 XLC E05 Hybrid Turbocharger for Seat Ibiza Cupra 6L, VW Polo GTI, Golf MK4 GTI and other 1.8T 20V applications. Ships fast from our USA warehouse with a 1-Year Limited Warranty. Worldwide shipping available.
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K04-001 XLC E05 Hybrid Turbo Seat Ibiza Cupra 6L Polo GTI Golf MK4 GTI 1.8T 20V

XS-POWER PERFORMANCE TURBOCHARGERS

K04-001 XLC E05 Hybrid Turbocharger

VW | Audi | SEAT 1.8T 20V Performance Turbo Upgrade

Performance-oriented K04-001 XLC E05 hybrid turbocharger for compatible transverse 1.8T 20V applications including Seat Ibiza Cupra 6L, Volkswagen Polo GTI, Golf MK4 GTI, Jetta MK4, New Beetle and Audi TT MK1 180HP applications.

K04-001 XLC
HYBRID TURBO PLATFORM
E05
HYBRID COMPRESSOR DESIGN
1.8T 20V
TRANSVERSE APPLICATIONS
VSR BALANCED
HIGH-SPEED BALANCING
DON'T SETTLE FOR ANOTHER K03
Step beyond the standard K03 platform with an XS-POWER hybrid turbo developed for performance-oriented 1.8T 20V builds.

XS-POWER K04-001 XLC E05 Hybrid Turbo

The XS-POWER K04-001 XLC E05 Hybrid Turbocharger is a performance upgrade for enthusiasts building compatible transverse Volkswagen, Audi and SEAT 1.8T 20V applications.

The original K03 turbocharger provides responsive performance in factory applications, but increased engine output can demand greater airflow from the turbo system. The K04-001 XLC E05 hybrid configuration is designed for enthusiasts seeking an upgraded turbo platform while retaining the responsive characteristics desired in a street-driven 1.8T build.

This makes the XS-POWER K04-001 XLC an attractive option for modified Seat Ibiza Cupra 6L, VW Polo GTI, Golf MK4 GTI, Jetta MK4, New Beetle and compatible Audi TT MK1 1.8T applications.

The combination of a K04-001-based hybrid configuration, E05 compressor technology, precision-machined components and high-speed VSR balancing creates a turbocharger intended for performance-oriented 1.8T 20V builds.

Performance Features

K04-001 XLC Hybrid Design
Performance-oriented hybrid configuration for compatible transverse 1.8T 20V applications.
E05 Compressor Technology
Upgraded compressor configuration designed around increased performance and airflow capability.
Responsive Turbo Characteristics
Designed for performance builds where responsive spool and strong street drivability remain important.
High-Speed VSR Balanced
Turbo rotating assembly subjected to high-speed VSR balancing.
Precision-Machined Components
Built around precision-machined turbocharger components.
1.8T Performance Upgrade
Intended for tuned and performance-oriented 1.8T 20V applications.

Technical Specifications

Brand XS-POWER
Turbo Model K04-001 XLC
Turbo Type Hybrid Performance Turbocharger
Hybrid Configuration E05
Engine Platform 1.8T 20V
Engine Orientation Transverse Applications
Balancing High-Speed VSR Balanced
Application Performance / Modified 1.8T Builds

Vehicle Fitment

SEAT
Seat Ibiza Cupra 6L 1.8T 20VT
Seat Ibiza Cupra R 1.8T 20VT
Compatible transverse 1.8T 20V applications using the appropriate turbo configuration.
VOLKSWAGEN
Volkswagen Polo GTI 1.8T
Volkswagen Golf MK4 GTI 1.8T
Volkswagen Jetta MK4 1.8T
Volkswagen New Beetle 1.8T
AUDI
Audi TT MK1 1.8T - 180HP Applications
Additional compatible transverse 1.8T applications using the appropriate turbo configuration.

Important 1.8T Fitment Notice

Volkswagen, Audi and SEAT 1.8T 20V vehicles were produced with multiple engine codes, turbocharger configurations and vehicle-specific components. Do not purchase based only on the vehicle being equipped with a 1.8T engine.

Verify your original turbo configuration, engine application and installation requirements before ordering. Additional tuning and supporting modifications may be required depending on the vehicle and desired performance level.

Moving Beyond the Factory K03

The K03 family is well known for quick response on the 1.8T platform. As airflow demand increases through tuning and supporting modifications, enthusiasts often look for a turbocharger with greater performance potential.

The XS-POWER K04-001 XLC E05 Hybrid is designed to provide an upgraded performance path while retaining the responsive character that makes the transverse 1.8T platform enjoyable on the street.

Built for the 1.8T Performance Enthusiast

Tuned Street Cars
Fast Road Builds
Weekend Performance Cars
Modified 1.8T Builds
European Performance Builds
Track-Oriented Projects

Tuning & Supporting Modifications

A hybrid turbocharger should be treated as part of a complete performance system rather than as an isolated modification. Proper ECU calibration and appropriate supporting components are important when increasing airflow and boost on a 1.8T 20V engine.

Fuel system requirements, intercooling, intake components, exhaust components, boost control and ECU calibration depend on the specific vehicle and performance target. Consult an experienced 1.8T tuner for the requirements of your build.

Professional Installation Recommended

Turbocharger installation requires correct oil supply, oil drain, cooling, intake, exhaust and boost-control connections. Before startup, confirm that all oil and coolant lines are clean and serviceable and follow proper turbocharger priming procedures.

Installation requirements can vary between vehicles and modified applications. Professional installation and appropriate ECU calibration are strongly recommended.

K04-001 XLC E05 Hybrid Turbo FAQ

Is this another standard K03 turbo?

No. This listing is for the XS-POWER K04-001 XLC E05 hybrid turbocharger, designed as a performance upgrade for compatible transverse 1.8T 20V applications.

Will it fit a Seat Ibiza Cupra 6L 1.8T?

Seat Ibiza Cupra 6L 1.8T 20VT is among the stated applications. Verify the original turbo and engine configuration before purchase because 1.8T applications can vary.

Will it fit a Golf MK4 GTI 1.8T?

Compatible Golf MK4 GTI 1.8T applications are included in the stated fitment. Original turbo configuration should be confirmed before ordering.

Will it fit an Audi TT MK1?

The stated application includes compatible Audi TT MK1 1.8T 180HP configurations. Do not assume compatibility with every TT 1.8T model.

Does a hybrid turbo require tuning?

Appropriate ECU calibration is strongly recommended for a performance hybrid turbo installation. Supporting requirements depend on the vehicle and performance target.

What horsepower does this turbo support?

No fixed horsepower figure is stated in this listing. Actual output depends on engine condition, calibration, boost level, fuel, intercooling, exhaust system and other supporting modifications.

K04-001 Hybrid Turbo Upgrade for VW Audi SEAT 1.8T 20V

The XS-POWER K04-001 XLC E05 hybrid turbo is a performance turbocharger upgrade for compatible transverse VW, Audi and SEAT 1.8T 20V applications. Popular applications include the Seat Ibiza Cupra 6L 1.8T, VW Polo GTI 1.8T, Volkswagen Golf MK4 GTI 1.8T, Jetta MK4 1.8T, New Beetle 1.8T and Audi TT MK1 180HP.

For enthusiasts searching for a K04-001 turbo, K04-001 hybrid turbo, E05 turbo, Golf MK4 GTI turbo upgrade, Polo GTI turbo upgrade, Ibiza Cupra hybrid turbo, Audi TT 1.8T turbo upgrade or VW 1.8T performance turbo, the XS-POWER K04-001 XLC provides an upgraded hybrid option for compatible applications.

Always verify the vehicle's original turbocharger configuration and engine application before ordering. Volkswagen Group 1.8T vehicles were produced in numerous configurations and compatibility should never be determined solely by engine displacement.

XS-POWER PERFORMANCE
Performance Parts Since 2000

XS-POWER supplies performance turbochargers, turbo kits, manifolds, headers, exhaust components, intercooler piping and turbo accessories for European, Japanese and American performance applications.

WORLDWIDE SHIPPING AVAILABLE TO SUPPORTED DESTINATIONS
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1 Review Hide Reviews Show Reviews

  • 5
    ⭐⭐⭐⭐⭐ Excellent Hybrid Turbo – Fast Spool & Great Power

    Posted by KIKO ROLLINS on Jul 21st 2026

    I installed this XS-POWER K04-001 XLC E05 Hybrid Turbo on my 1.8T build, and I'm extremely impressed with the results. It bolts up like a factory K04 but delivers noticeably stronger mid-range and top-end power. Turbo spool is quick, boost comes on smoothly, and the car feels much more responsive throughout the RPM range. The build quality is excellent, and everything fit perfectly during installation. If you're looking for a reliable hybrid turbo upgrade for your Golf GTI, Polo GTI, Seat Ibiza Cupra, or any compatible 1.8T 20V application, this is an outstanding value. Highly recommended for anyone wanting OEM-style fitment with significantly improved performance.

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