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For MY 06/2004 - 06/2007 Features: "High-dimensional Super Turbo Muffler Debut" Exhaust Efficiency & Sound Pressure Reduction are implemented together. The turbo engine master HKS challenged to implement the following 3 characteristics together to develop Super Turbo Muffler. -Effective on stock to high performance vehicles w/ upgraded turbines. -The performance exhaust sound meets the JASMA standard. -Unique exhaust sound designed specifically for the engine.

For NCEC MY 08/2005-04/2015 Features: Advanced Legamax with vehicle specific stylish tip design. Legamax Premium mufflers offer the performance benefits of a sports muffler with the class and elegance of a premium muffler. Every tail pipe design is customised per application to ensure that muffler has impact and becomes a focal point in the appearance of the vehicle, yet blends with the overall design of the car. Legamax Premium mufflers are constructed of SUS304 grade stainless steel to give a high lustre finish which is durable. Some applications also incorporate the latest automotive fashion trends by featuring titanium tail tips which adds to the premium appearance with its distinct look. -Optimized tip for each vehicle model. The base vehicle is studied from different points of view to select the best tip, which has an impact and it is well balanced and high quality. -High quality and JASMA approved. It clears the strict JASMA standard. -High quality SUS304 for further durability. -Proven "Advantex* glass wool" (Continuous fibeer glass wool). * Advantex is a registered trademark of Owens Corning.

http://www.hks-power.co.jp/en/product/engine/timing_belt/index.html

For EJ20. GRB bumper has a small opening; therefore the air intake is also limited. To get enough air for cooling, HKS GRB Oil Cooler has many features for the best condition for engine. Features 1. Installation of the core in the fender that doesn’t have any effect on radiator Setting the core near radiator will cause a temperature rise, so we have set it in the right fender which will provide stable cooling condition. 2. Aluminum panel air guide included The air guide is included that lead the air from the narrow opening into the core for efficient cooling. It’s the perfect core cooling system because we have analyzed the air flow and designed it. And also we have designed air guide exit to tire house. 3. Thick type 12 rows core Adopted thicker core type than previous products for EJ20. With this product, you will have better cooling result but also avoid losing the pressure loss. 4. Stable oil temperature and lower the peak temperature It will improve the cooling effect by using with stock water coolant type. This kit will lower the peak temperature and stabilize the oil temperature. At the same time, by lowering the oil temperature will keep the water temperature down too. 5. HKS total cooling system This kit can be used with the front layout type and very efficient and high cooling system HKS R type Intercooler.