HKS 12999-AK004 Supercharger

( Brand: Hks ), ( Average Delivery Time: 3-4 Days ), ( Manufacturer Warranty: 30 Days ), ( Package Height: 3.00 ), ( Manufacturer Part Number: 12999-AK004 ), ( Alt Mpn 1: Hks12999-ak004 ), ( Package Length: 8.00 ), ( Package Width: 6.00 ), ( Package Weight: 0.8000 ), ( Part Type: Exhaust Muffler Parts )

Review HKS Supercharger Components

The HKS 12999-AK004 Supercharger Kit is a high-performance upgrade for your vehicle's engine, designed to deliver increased power and torque for an exhilarating driving experience. This supercharger kit is specifically engineered for naturally aspirated six-cylinder engines, providing a significant boost in power without the need for complex turbocharger systems.

The HKS 12999-AK004 Supercharger Kit comes with a compact and lightweight Epsilon series supercharger. This supercharger features a 4-lobe rotor design, which ensures efficient air compression at all engine speeds. The supercharger is driven by a heavy-duty HKS belt system, which is designed to minimize power loss and provide reliable and consistent performance.

The supercharger kit also includes an HKS air cleaner, which features a large-capacity filter element to ensure clean and efficient airflow to the engine. The air cleaner is designed to integrate seamlessly with the supercharger and the factory intake system, providing a clean and tidy installation.

The HKS 12999-AK004 Supercharger Kit is designed to be easy to install, with clear and detailed instructions provided. The kit includes all necessary hardware and components, including a high-performance intercooler and all necessary piping. The intercooler is designed to efficiently cool the compressed air, ensuring optimal performance and reducing the risk of detonation.

The HKS 12999-AK004 Supercharger Kit is a high-quality and high-performance upgrade for your vehicle's engine. It is designed to deliver significant power gains, with typical increases in horsepower ranging from 50 to over 100 horsepower, depending on the specific engine and application. The supercharger kit also provides improved torque throughout the rev range, making for a more responsive and exciting driving experience.

In summary, the HKS 12999-AK004 Supercharger Kit is a top-quality and high-performance upgrade for naturally aspirated six-cylinder engines. It features a compact and efficient Epsilon series supercharger, a large-capacity air cleaner, and all necessary hardware and components for a tidy and reliable installation. The kit delivers significant power gains and improved torque, making for a more exciting and responsive driving experience.

The HKS 12999-AK004 supercharger kit is a popular aftermarket upgrade for the Subaru Impreza WRX STI and other Subaru models with a similar engine. This supercharger system offers several benefits, but it also comes with some drawbacks. Let's explore the key pros and cons of investing in this modification.

1. Increased Power: The most significant advantage of installing the HKS supercharger kit is the substantial increase in power output. You can expect a power gain of approximately 50-100 horsepower and 50-80 lb-ft of torque, depending on the specific engine and tuning.

2. Improved Responsiveness: Supercharging provides instant torque, making the engine more responsive and eliminating turbo lag. This results in a more enjoyable and engaging driving experience.

3. Smoother Power Delivery: Compared to a turbocharger, superchargers offer a more consistent power delivery throughout the RPM range. This is because they do not rely on exhaust gases to generate boost, allowing for more stable power output.

4. Improved Engine Sound: The supercharger kit comes with an HKS blow-off valve, which releases excess air pressure when you lift off the throttle. This venting of air creates a distinctive sound that many enthusiasts find appealing.

1. Cost: Installing a supercharger kit can be expensive. The HKS 12999-AK004 kit alone costs around $6,000, and you will also need to factor in the cost of installation and any necessary engine modifications.

2. Complex Installation: Installing a supercharger kit requires a significant amount of mechanical knowledge and expertise. It's recommended to have the installation done by a professional to ensure everything is done correctly and safely.

3. Reduced Fuel Economy: Supercharging requires additional engine power, which translates to increased fuel consumption. You can expect a decrease in fuel economy of around 10-15%.

4. Potential Increase in Engine Wear: Supercharging can put additional stress on the engine components, potentially leading to increased wear and tear over time. Regular maintenance and proper tuning are essential to mitigate these risks.

The HKS 12999-AK004 supercharger kit offers significant power gains, improved responsiveness, and smoother power delivery. However, it comes with a high cost, complex installation, reduced fuel economy, and potential engine wear. Ultimately, whether this modification is worth it depends on your individual priorities, budget, and driving style.

If you're looking for a substantial power increase and improved driving experience, the HKS supercharger kit might be an excellent investment for you. However, it's crucial to consider the cost, complexity, and potential drawbacks before making a decision. Proper research, planning, and budgeting are essential to ensure a successful and enjoyable installation process.

In the end, if you're an enthusiast who values power, performance, and the unique sound of a supercharger, this modification could be worth the investment. But if you're looking for a more cost-effective option, consider other modifications like a performance exhaust or intake system.

part # 12999ak004 prices

• $182.19-$232.99

specifications frazzlekits:

• brand: Hks
• average delivery time: 3-4 Days
• manufacturer warranty: 30 Days
• package height: 3.00
• manufacturer part number: 12999-AK004
• alt mpn 1: Hks12999-ak004
• package length: 8.00
• package width: 6.00
• package weight: 0.8000
• part type: Exhaust Muffler Parts

returns frazzlekits:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

shipping frazzlekits:

• carrier: FedEx
• type: Calculated
• class: Standard
• transit: 2-5 Days
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00

general frazzlekits:

• Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits
• condition: New

payments frazzlekits:

• other
• credit card: Mastercard
• wallet: Apple-pay

offer frazzlekits:

• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: June 1, 2026

seller frazzlekits:

• rating: 99.7%
• # reviews: 531018