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The Subaru WRX is a beloved vehicle among car enthusiasts, known for its performance and rally heritage. One of the key components that can significantly affect the engine’s performance is the head gasket. Upgrading the head gasket can lead to impressive gains in horsepower, with some setups boasting up to 40 additional horsepower. This article will explore the different head gasket upgrades available for the Subaru WRX, their costs, and the results you can expect.
Understanding Head Gaskets
Before delving into upgrades, it’s important to understand the function of a head gasket. The head gasket sits between the engine block and the cylinder head, sealing the combustion chamber and preventing coolant and oil from mixing. A high-performance head gasket can withstand greater pressure and temperature, which is essential for tuning and performance enhancement.
Benefits of Upgrading Your Head Gasket
Upgrading the head gasket can provide several benefits, including:
- Increased horsepower: Up to 40 HP more with the right setup.
- Improved reliability: Higher durability under extreme conditions.
- Better sealing: Enhanced performance due to improved sealing capabilities.
Types of Head Gasket Upgrades
There are several types of head gasket upgrades available for the Subaru WRX, each offering different levels of performance enhancement:
- OEM Replacement Gaskets: These are factory gaskets that provide a reliable seal but offer no performance increase.
- MLS (Multi-Layer Steel) Gaskets: These gaskets are designed for high-performance applications, allowing for higher boost levels and temperatures.
- Cometic Gaskets: Known for their customizable thickness options, Cometic gaskets can be tailored to specific performance needs.
- Copper Gaskets: These gaskets provide excellent thermal conductivity and can handle extreme conditions, making them suitable for race applications.
Cost of Head Gasket Upgrades
The cost of upgrading your head gasket can vary widely based on the type of gasket chosen and the labor involved. Here’s a breakdown of potential costs:
- OEM Replacement Gasket: $100 – $200 for parts.
- MLS Gasket: $200 – $500 for parts.
- Cometic Gasket: $250 – $600 for parts.
- Copper Gasket: $300 – $700 for parts.
- Labor Costs: $500 – $1000, depending on the shop and location.
Expected Results from Upgrading
Upgrading the head gasket can yield significant performance improvements. Here’s what you can generally expect:
- Horsepower Gains: Many users report gains of up to 40 HP with the right tuning and supporting modifications.
- Torque Improvements: Enhanced torque delivery, especially at higher RPMs.
- Improved Engine Response: A more responsive throttle and better overall drivability.
Conclusion
Upgrading the head gasket on a Subaru WRX can lead to remarkable performance enhancements, including increased horsepower and improved reliability. While costs can vary based on the type of gasket and labor, the potential gains make it a worthwhile investment for enthusiasts looking to maximize their vehicle’s performance. Always consider pairing the head gasket upgrade with other modifications for optimal results.