Cost Breakdown for a 4g63 Turbo Upgrade to 450 Hp Using Garrett Gt35r

The 4G63 engine has gained a reputation for its tunability and performance potential. For enthusiasts looking to push their 4G63 to around 450 horsepower, upgrading to a Garrett GT35R turbocharger is a popular choice. In this article, we will break down the costs associated with this upgrade, including parts, labor, and additional modifications that may be necessary to achieve optimal performance.

Understanding the Garrett GT35R Turbocharger

The Garrett GT35R is known for its ability to provide significant power gains while maintaining reasonable spool times. Before diving into the cost breakdown, it’s essential to understand the specifications and benefits of this turbocharger.

  • Compressor Wheel Size: 60mm
  • Turbine Wheel Size: 68mm
  • Maximum Horsepower: 600 hp
  • Suitable for: High-performance applications

Cost Breakdown

The total cost of upgrading to a Garrett GT35R turbocharger can vary based on several factors, including whether you choose to do the work yourself or hire a professional. Below is a detailed breakdown of the expected costs.

1. Turbocharger Cost

The cost of the Garrett GT35R turbocharger itself is a significant portion of the upgrade.

  • Garrett GT35R Turbocharger: $1,200 – $1,500

2. Supporting Modifications

To fully utilize the capabilities of the GT35R, several supporting modifications are necessary.

  • Upgraded Fuel Injectors: $400 – $600
  • Fuel Pump Upgrade: $150 – $300
  • Intercooler: $300 – $600
  • Exhaust Manifold: $500 – $800
  • Wastegate: $200 – $400
  • Blow-off Valve: $100 – $200

3. Engine Management System

A proper engine management system is crucial for tuning and maximizing performance.

  • Standalone ECU: $1,000 – $2,000
  • Tuning Software: $200 – $500

4. Labor Costs

If you choose to hire a professional for the installation, labor costs can add up quickly.

  • Labor (6-10 hours): $600 – $1,200

Total Estimated Cost

Now that we have broken down the individual costs, let’s summarize the total estimated cost for the upgrade.

  • Turbocharger: $1,200 – $1,500
  • Supporting Modifications: $1,650 – $3,000
  • Engine Management System: $1,200 – $2,500
  • Labor Costs: $600 – $1,200
  • Total Estimated Cost: $4,650 – $8,200

Conclusion

Upgrading your 4G63 to support a Garrett GT35R turbocharger for 450 hp is an exciting project that can significantly enhance your vehicle’s performance. However, it’s essential to consider the total costs involved, including both parts and labor. By planning your budget and ensuring you have all necessary components, you can achieve the desired power levels while maintaining reliability.