Alright, gearheads! Let's talk about the 1999 Subaru Impreza WRX STI, a true legend in the automotive world. This isn't just a car; it's a piece of rally-bred history, a performance icon that has captured the hearts of enthusiasts worldwide. If you're lucky enough to own one, or are considering taking the plunge, you're in for a rewarding, albeit sometimes challenging, experience. Owning and maintaining a classic like the '99 STI means embracing a community, understanding its quirks, and appreciating the raw, visceral driving experience it offers. This guide is your starting point, your digital wrench, to navigate the world of the 1999 Subaru Impreza STI, covering everything from its storied history to the nitty-gritty of repair and restoration.

The Genesis of a Legend: Why the 1999 STI Matters

The 1999 Subaru Impreza WRX STI isn't just a car; it's a testament to Subaru's commitment to rally racing and performance engineering. Born from the fires of the World Rally Championship (WRC), the STI (Subaru Tecnica International) badge signifies the pinnacle of Subaru's engineering prowess. The 1999 model, in particular, holds a special place in automotive history. This was a car designed for pure driving enjoyment, with a focus on performance that made it a formidable competitor on the rally stages and a thrilling experience on the road. The 1999 STI was all about raw power, responsive handling, and a connection between the driver and the machine that is rare in today's cars. It's a car that demands respect and rewards skillful driving. The iconic blue paint, gold wheels, and aggressive styling made it instantly recognizable and cemented its status as a performance icon. Understanding its history is crucial, as it sets the stage for appreciating its engineering and the passion that went into its creation.

This specific model year represents a golden era for Subaru, a time when the company was deeply involved in the WRC. The lessons learned on the rally circuit were directly applied to the road-going STI, resulting in a car that was both incredibly capable and incredibly fun to drive. The 1999 STI wasn't just fast; it was balanced, predictable, and forgiving, making it accessible to a wide range of drivers. The car's success on the rally stage, coupled with its engaging driving dynamics, quickly established it as a cult classic. The car's popularity has only grown over the years, with enthusiasts worldwide seeking to own and preserve these iconic machines. Restoring a 1999 Subaru Impreza STI is more than just fixing a car; it's about preserving a piece of automotive history and experiencing a driving experience that is increasingly rare in the modern age. The car's performance capabilities, combined with its distinctive styling and rally heritage, have solidified its place in the automotive hall of fame.

Core Components: Engine, Drivetrain, and Suspension

Let's get down to the technical bits! The 1999 Subaru Impreza WRX STI is a mechanical marvel, and understanding its core components is essential for any owner or aspiring restorer. The heart of the STI is its legendary 2.0-liter turbocharged flat-four engine, a powerhouse known for its robust construction and impressive performance. This engine, often referred to as the EJ20, produces substantial power and torque, delivering exhilarating acceleration and a thrilling driving experience. The STI's engine is not just about raw power; it's also about responsiveness. The turbocharger provides near-instant boost, resulting in a linear and predictable power delivery. This allows the driver to feel connected to the car and to modulate the power precisely. Understanding the nuances of the EJ20 engine, its specific characteristics, and common issues is vital for proper maintenance and restoration. Regular maintenance, including oil changes, spark plug replacements, and timing belt changes, are critical to ensuring the engine's longevity and performance. The engine's reputation for reliability is well-deserved, but it is still subject to wear and tear over time.

Behind the engine, the STI's drivetrain is equally impressive. The car features a sophisticated all-wheel-drive (AWD) system, which provides exceptional grip and handling. This AWD system is not just a marketing gimmick; it's a core component of the STI's performance capabilities. The system distributes power to all four wheels, optimizing traction and allowing the car to carve corners with precision. The STI's AWD system is a significant factor in its success on the rally stages, where grip is paramount. Maintaining the drivetrain, including the differential, axles, and transmission, is crucial to preserving the car's performance. The AWD system requires regular fluid changes and inspections to ensure it functions correctly. A well-maintained drivetrain is essential for the STI's handling characteristics and driving dynamics.

Finally, the STI's suspension is tuned for performance. Stiff springs, sport-tuned dampers, and upgraded sway bars contribute to the car's precise handling. The suspension is designed to minimize body roll and provide exceptional control. The STI's suspension allows the car to tackle corners with confidence, providing the driver with a sense of control and stability. Regular inspection and maintenance of the suspension components, including shocks, struts, and bushings, are vital to maintain the car's handling capabilities. Upgrading the suspension with aftermarket parts can further enhance the car's performance, but it's essential to select components that are compatible with the car's overall design. The suspension system is an integral part of the STI's performance capabilities and requires careful attention to ensure it performs at its best. Each component works in harmony to provide an engaging and thrilling driving experience.

Common Problems and Solutions

No vintage car is without its quirks, and the 1999 Subaru Impreza WRX STI is no exception. While generally reliable, some common issues can crop up, and knowing what to look for can save you time, money, and headaches. One of the most common problems is related to the engine. The EJ20 engine is known for its durability, but it can suffer from issues like head gasket failure, oil leaks, and turbocharger problems. Regular maintenance, including using high-quality oil, is crucial to mitigating these risks. Another area of concern is the drivetrain. The STI's AWD system is complex, and components like the differential and axles can wear out over time. Regular fluid changes and inspections are essential for preventing major issues. The car's electrical system can also be prone to problems, such as faulty sensors and wiring issues. Diagnosing electrical problems can be tricky, so it's best to consult a qualified mechanic.

Rust is another potential issue, especially in areas with harsh weather conditions. The STI's body is susceptible to rust, so it's important to inspect the car regularly for any signs of corrosion. The car's interior can also suffer from wear and tear. Seats, carpets, and trim can show signs of age, so proper care and maintenance are important. Finding quality replacement parts can sometimes be challenging, but the STI's popularity means there's a good aftermarket support network. The internet is a great resource for finding parts and information. The enthusiast community is also a great place to find advice and assistance. Many owners are more than happy to share their knowledge and experiences. Addressing these common problems promptly will help keep your 1999 Subaru Impreza WRX STI running smoothly and will preserve its value. The car's durability and performance depend on proper maintenance and prompt repair.

Restoration: A Step-by-Step Guide

Ready to get your hands dirty? Restoring a 1999 Subaru Impreza WRX STI can be a rewarding experience, but it requires patience, dedication, and a methodical approach. First, you need to assess the car's condition. Inspect the body for rust, assess the mechanical components, and evaluate the interior. Document everything, and create a detailed plan before you begin. Next, establish a budget and stick to it. Restoration projects can quickly become expensive, so it's important to be realistic about costs. Research is critical. Consult online forums, owner's clubs, and repair manuals to understand the car's systems and how to fix them. Start with the basics. Clean the car thoroughly, inside and out. Then, begin with the mechanical components. Replace worn-out parts, such as brakes, suspension components, and fluids. Work methodically, one system at a time. The engine is often the heart of the restoration. Consider a complete engine rebuild or replacing worn components. The drivetrain also needs attention. Inspect and repair the AWD system, transmission, and axles. The body is another significant area of focus. Repair any rust, and repaint the car to its original color.

Interior restoration can also be very satisfying. Replace worn seats, carpets, and trim. The goal is to bring the interior back to its original condition. Remember, restoration is a long-term process. Don't rush it. Take your time, and enjoy the process. The results will be worth it. The internet and the owner's community are incredibly valuable resources during the restoration. They provide knowledge and support. Finally, seek help from professionals if needed. Don't be afraid to ask for assistance. This is especially true for complex tasks. Restoring a 1999 Subaru Impreza WRX STI can be a complex but highly rewarding undertaking. The process requires careful planning, patience, and attention to detail. The end result is not just a car, but a work of art and a testament to your skills and dedication. The time and effort put into restoration will be a significant contribution to automotive history and the enjoyment of driving a classic. This is your chance to bring the car back to its original glory.

Finding Parts and Resources

Okay, so you're ready to dive in, but where do you find the parts and information you need? Thankfully, the 1999 Subaru Impreza WRX STI has a strong enthusiast following, meaning there's a wealth of resources available. Online forums and owner's clubs are invaluable. These communities are filled with people who have experience with the car and are willing to share their knowledge. They can offer advice, troubleshooting tips, and even help you find rare parts. When it comes to finding parts, there are several options. You can start with your local auto parts store, but they may not carry everything you need. Specialist retailers that cater to the Subaru Impreza WRX STI market are the best. They offer a wide range of parts, from genuine OEM components to aftermarket upgrades.

eBay is also a great resource for finding parts, both new and used. You can often find great deals on eBay, but it's important to do your research to ensure you're getting genuine parts. When buying used parts, inspect them carefully before purchasing. Repair manuals are an essential resource for any restoration project. They provide detailed instructions on how to repair and maintain the car's systems. You can find repair manuals online or at your local bookstore. In addition to these resources, social media is a great place to connect with other enthusiasts and find parts and information. The key is to be persistent and resourceful. The more you explore, the more resources you will find. The restoration of a 1999 Subaru Impreza WRX STI is not just a project; it is a journey. The parts are just a start, and knowledge and community are the foundation of this journey. The goal is not just to fix the car but to join a vibrant community of people who share the same passion. The process of searching for parts and resources is an essential part of the restoration process. Learning how to navigate these resources will help make the restoration successful. Finding the right parts and information will bring the car closer to its original condition.

Driving and Maintaining Your STI

Once your 1999 Subaru Impreza WRX STI is restored, the real fun begins! Driving this car is an experience. The raw power, precise handling, and engaging driving dynamics make every drive an adventure. However, to keep that thrill alive, proper maintenance is crucial. Regular maintenance is the key to preserving the car's performance and longevity. Follow the manufacturer's recommended maintenance schedule. This includes oil changes, spark plug replacements, and other routine tasks. Use high-quality fluids and lubricants. This helps protect the car's engine and drivetrain. Inspect the car regularly for any signs of wear and tear. Check the tires, brakes, and suspension components. Addressing issues promptly can prevent major problems.

Be mindful of how you drive the car. The STI is designed for performance, but it's also important to drive it responsibly. Avoid excessive speeds and harsh driving conditions. Protect the car from the elements. Park it in a garage or under a cover when possible. Clean the car regularly to prevent rust and keep it looking its best. The goal of maintenance is to enjoy the driving experience and preserve the car's value. The car is more than just a means of transportation; it's a piece of automotive history. Join an enthusiast club. This provides access to a supportive community. Share your experiences with other owners. Maintenance is essential for the car's long-term health and your continued enjoyment. You've invested time and effort into restoring the car, so ensure its longevity. The enjoyment of driving your STI is closely related to the care you take of it. The combination of driving, maintenance, and community will ensure a long and fulfilling relationship with your 1999 Subaru Impreza WRX STI. Make sure to enjoy the ride!

Conclusion

The 1999 Subaru Impreza WRX STI is more than just a car; it's a passion project, a symbol of driving purity, and a testament to the golden age of performance engineering. Owning and restoring one is a journey filled with challenges and rewards. By understanding its history, appreciating its engineering, and embracing the community, you can keep the spirit of this legendary car alive for years to come. Whether you're a seasoned enthusiast or a newcomer to the world of classic cars, the '99 STI offers an unmatched driving experience and a legacy worth preserving. Go out there, enjoy the thrill, and become a part of the STI legend!