Have Questions?
This Part Fits:
Year | Make | Model | Submodel |
---|---|---|---|
2004-2012 | Subaru | Impreza | WRX STI |
2007,2011-2012 | Subaru | Impreza | WRX STI Limited |
2010 | Subaru | Impreza | WRX STI Special Edition |
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Engine
Are you in search of a high-performance engine that delivers exceptional power and reliability? Look no further! Our curated Engine Collection features top-of-the-line motor vehicle engine parts designed to meet the demands of even the most discerning drivers. With brands like DDP, Exergy, and Fleece Performance, each product is engineered with precision to enhance your vehicle's performance.
Unmatched Performance and Durability
Our engine parts are crafted with advanced technologies that optimize performance and fuel efficiency, making them perfect for drivers who demand the very best. Experience exhilarating acceleration and top speeds with our selection of high-quality components, including:
Elevate Your Driving Experience
Utilizing high-strength materials for durability and longevity, our Engine Collection helps you achieve high horsepower and torque. Brands like Brian Crower and Clevite ensure you have what you need for an unforgettable driving experience.
Order Your Engine Parts Today!
Don’t miss out on the chance to unleash the full potential of your vehicle. Explore our Engine Collection today and transform your ride with powerful and reliable engine components that stand the test of time!

Manley Performance
Founded in 1966 by Hank Manley, Manley Performance Products began as Manley Speed Equipment, specializing in high-quality automotive components. Our initial product line included:
- Stainless valves
- Forged pistons
- Internal engine components
With a simple catalog and grassroots beginnings in New Jersey, our reputation for quality spread quickly. Early customers included racing legends such as Don Garlits, Bo Laws, and Bill Jenkins.
Our Heritage
Since our inception in March 1966, Manley Performance has been a leader in the high-performance automotive industry. With a passion for racing and automotive excellence ignited by our founder Hank Manley, we have built a legacy that continues to thrive.
Innovators from the Start
Our early offerings laid the groundwork for innovation in the automotive aftermarket. We’ve consistently prioritized quality and performance, evolving our product lines to include:
- Camshafts
- Connecting rods
- Crankshafts
- Valvetrain components
Legends Choose Manley
Throughout our history, we’ve proudly served some of the most renowned figures in racing, including:
- Don Garlits
- Bill Jenkins
- “Jungle Jim” Liberman
These partnerships have defined eras in racing and fueled our pursuit of automotive excellence.
Expanding Horizons
From our state-of-the-art facilities in Lakewood, New Jersey, and Orange, California, we continue to expand our product line to meet the needs of modern markets, including:
- Sport compact applications
- Ford modular engines
- Chevy LS engines
As an OEM supplier, we’ve garnered recognition from industry leaders, including Ford.
Committed to Excellence
As we move forward, Manley Performance Products remains dedicated to redefining excellence in the ever-evolving high-performance aftermarket industry. Explore our offerings, experience our passion, and join us on this exciting journey of innovation and power.

Piston Sets - Forged - 4cyl
Welcome to our exclusive collection of Piston Sets - Forged - 4cyl. These piston sets are engineered for performance enthusiasts looking to enhance their vehicle's power and efficiency. With a focus on quality and durability, our forged piston sets are the perfect upgrade for your 4-cylinder engine.
Key Features
- High Strength: Designed to withstand the extreme conditions of high-performance engines.
- Precision Engineering: Each piston is crafted to ensure optimal fit and function.
- Enhanced Performance: Improves combustion efficiency, leading to better power output.
- Lightweight Design: Reduces overall engine weight for improved acceleration and handling.
Why Choose Our Forged Piston Sets?
Our Piston Sets - Forged - 4cyl collection is the result of extensive research and development. Here’s why you should choose our products:
- Manufactured using premium materials for longevity and performance.
- Tested rigorously to meet the highest industry standards.
- Suitable for both street and track applications.
- Expert support and guidance available for your installation and tuning needs.

Pistons
Welcome to our Pistons collection, where quality meets performance. Whether you're a professional mechanic or a DIY enthusiast, our curated selection of pistons is designed to enhance your engine's efficiency and reliability of your engines performance.
Why Choose Our Pistons?
- High-Quality Materials: Our pistons are crafted from top-notch materials to ensure durability and longevity from various manufactues.
- Enhanced Performance: Designed to optimize your engine's performance, our pistons deliver power and efficiency for all makes and models.
- Wide Range: Choose from a variety of sizes and specifications to meet your specific needs from daily drivers torace cars.
- Competitive Pricing: Enjoy premium quality without breaking the bank.
Shop Our Pistons Collection
Browse through our extensive range of pistons below:
- High-Performance Racing Pistons
- Standard Replacement Pistons
- Lightweight Forged Pistons
- Custom Fit Pistons