HKS Hi-Power 409 EP3 K20

This is the HKS Hi-Power 409 cat-back exhaust system, specifically designed for the EP3 model with the K20 engine. If you're looking to change the sound and performance of your exhaust, a cat-back system like this replaces the factory piping from the catalytic converter back to the muffler. It's a popular choice for those who want a more aggressive exhaust note and potentially improved exhaust flow.

The Hi-Power 409 is constructed from SUS304 stainless steel, which is known for its strength and resistance to corrosion, meaning it should hold up well over time. HKS uses a large-diameter, straight-through muffler design with a 120mm tip. This setup is intended to reduce backpressure, which can help the engine breathe a little easier. The larger piping diameter and the muffler's internal design contribute to a deeper, sportier exhaust tone compared to the stock system. You'll notice a more pronounced sound, especially under acceleration, that lets you know the engine is working.

When installing a cat-back exhaust, you're typically looking at a bolt-on process, though some minor adjustments might be needed to get everything perfectly aligned. This system is designed to fit the EP3 K20 application, aiming for a direct fit to simplify the installation. It's a well-known option from HKS, a brand recognized for its performance exhaust components.