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The B5 Audi A4 1.8T is a beloved platform for tuners and enthusiasts alike. One of the most popular upgrades for this vehicle is the GT28RS turbocharger, known for its ability to significantly enhance performance. In this article, we will explore the costs involved in upgrading to a GT28RS turbo and the expected power gains.
Understanding the GT28RS Turbo
The GT28RS turbocharger, often referred to as the “Disco Potato,” is a ball-bearing turbo that provides excellent spool characteristics and high power potential. It is particularly favored for its ability to deliver a solid power band while maintaining reliability.
Cost of Upgrading to a GT28RS Turbo
When considering an upgrade, it’s essential to break down the costs involved. The total expense can vary based on several factors, including whether you choose to do the installation yourself or hire a professional.
- Turbocharger Cost: The GT28RS typically ranges from $800 to $1,200, depending on the retailer and any included accessories.
- Supporting Mods: Upgrading to a GT28RS often requires additional modifications. Expect to spend around $500 to $1,000 on supporting mods such as upgraded injectors, a fuel pump, and a front-mount intercooler.
- Installation Labor: If you opt for professional installation, labor costs can range from $500 to $1,500, depending on the shop’s rates and the complexity of the installation.
- Tuning: A proper tune is essential for maximizing the performance of the new turbo. Tuning costs can vary from $300 to $800.
In total, the cost of upgrading to a GT28RS turbo on your B5 A4 1.8T can range from approximately $2,100 to $4,500, depending on your choices and the condition of your vehicle.
Expected Power Gains
One of the most exciting aspects of upgrading to a GT28RS turbo is the potential for significant power gains. While results can vary based on supporting modifications and tuning, most users report impressive increases in horsepower and torque.
- Stock Power Levels: The stock B5 A4 1.8T produces around 150-180 horsepower, depending on the model year and specific engine variant.
- Power with GT28RS: After upgrading to the GT28RS turbo and with proper tuning, many enthusiasts see power levels ranging from 250 to 300 horsepower.
- Torque Gains: Torque can also see a significant increase, often reaching upwards of 300 lb-ft, providing a noticeable improvement in acceleration and driving experience.
These power gains make the GT28RS an attractive option for those looking to enhance the performance of their B5 A4 1.8T. However, it is crucial to ensure that your vehicle’s drivetrain and suspension are prepared to handle the increased power.
Considerations Before Upgrading
Before proceeding with the upgrade, there are several considerations to keep in mind to ensure a successful and reliable installation.
- Vehicle Condition: Ensure your engine is in good condition before installing a larger turbo. Address any existing issues, such as oil leaks or worn components.
- Supporting Modifications: Upgrading the turbo without the necessary supporting mods can lead to poor performance and potential engine damage.
- Fuel Quality: Higher power levels will require higher octane fuel to prevent knocking and ensure optimal performance.
- Insurance and Emissions: Be aware of how the upgrade may affect your vehicle’s insurance and emissions compliance.
Taking the time to consider these factors can lead to a more satisfying upgrade experience and better long-term performance.
Conclusion
Upgrading to a GT28RS turbo on your B5 A4 1.8T can offer substantial power gains and an exhilarating driving experience. While the costs can add up, the potential for increased horsepower and torque makes it a worthy investment for enthusiasts. By ensuring proper supporting modifications and a thorough understanding of the upgrade process, you can enjoy the full benefits of this turbocharger upgrade.