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The Ford Focus ST is a popular choice among car enthusiasts looking for an affordable yet fun vehicle to modify. With a base price of around $2,200, it serves as an excellent platform for performance upgrades. In this guide, we will explore how to achieve over 150 horsepower gains through various modifications, along with their associated costs and installation tips.
Understanding the Ford Focus ST
The Ford Focus ST is equipped with a turbocharged 2.0L EcoBoost engine that produces a respectable amount of power. However, many enthusiasts seek to enhance its performance further. Here’s a breakdown of the stock specs:
- Engine: 2.0L Turbocharged Inline-4
- Horsepower: 252 hp
- Torque: 270 lb-ft
Key Modifications for Power Gains
To achieve significant horsepower gains, several modifications can be made to the Ford Focus ST. Below are some of the most effective upgrades:
- ECU Tune: A performance ECU tune can unlock additional horsepower by optimizing fuel maps and boost levels.
- Cold Air Intake: Upgrading to a cold air intake allows for better airflow, improving engine efficiency and power output.
- High-Performance Exhaust System: A less restrictive exhaust system enhances exhaust flow, contributing to increased horsepower.
- Intercooler Upgrade: A larger intercooler helps reduce intake temperatures, allowing for more aggressive tuning.
- Turbo Upgrade: Upgrading the turbocharger can yield the most significant power gains but requires more extensive modifications.
1. ECU Tune
The first step in modifying the Ford Focus ST is to install a performance ECU tune. This upgrade can cost between $500 and $800, depending on the tuner and the features included in the tune. A proper tune can yield gains of 30-50 horsepower.
2. Cold Air Intake
A cold air intake system typically costs around $250 to $400. This modification can provide an additional 10-20 horsepower by improving airflow into the engine. Installation is straightforward, usually taking about an hour.
3. High-Performance Exhaust System
Replacing the stock exhaust system with a high-performance option can cost between $500 and $1,200. This upgrade not only enhances horsepower by 10-20 but also improves the vehicle’s sound. Installation can take 2-3 hours, depending on the complexity of the system.
4. Intercooler Upgrade
Installing a larger intercooler can range from $300 to $800. This upgrade is essential for maintaining performance, especially when running higher boost levels. It can provide an additional 10-15 horsepower and typically takes about 2 hours to install.
5. Turbo Upgrade
Upgrading the turbocharger is the most involved modification and can cost between $1,000 and $2,500. Depending on the turbo used, this upgrade can yield 50+ horsepower. Professional installation is recommended and can take several hours.
Cost Summary
Here’s a quick summary of the potential costs for each modification:
- ECU Tune: $500 – $800
- Cold Air Intake: $250 – $400
- High-Performance Exhaust System: $500 – $1,200
- Intercooler Upgrade: $300 – $800
- Turbo Upgrade: $1,000 – $2,500
When considering all these modifications, the total cost can range from approximately $2,550 to $6,700, depending on the chosen upgrades and installation methods.
Installation Tips
For those looking to tackle these modifications themselves, here are some installation tips:
- Ensure you have the right tools: A basic toolset including wrenches, sockets, and screwdrivers is essential.
- Follow manufacturer instructions: Each part will come with specific installation instructions that should be followed carefully.
- Consider professional help: If you’re unsure about any step, don’t hesitate to consult a professional mechanic.
- Take your time: Rushing through installations can lead to mistakes, so take your time to ensure everything is done correctly.
- Test after installation: Always test your vehicle after modifications to ensure everything is functioning as it should.
Conclusion
Modifying a $2,200 Ford Focus ST to achieve over 150 horsepower gains is entirely feasible with the right upgrades and knowledge. By investing in performance parts and following this guide, you can transform your Focus ST into a powerful and exhilarating driving machine. Always remember to consider your budget and installation capabilities when planning your modifications.