What material is the HKS Hi-Power 409 exhaust made from?

This cat-back exhaust system is constructed from SUS304 stainless steel. This material is chosen for its strength and its ability to resist corrosion, helping the exhaust system last longer.

Does this exhaust system require welding or cutting for installation?

The HKS Hi-Power 409 cat-back exhaust is designed as a direct bolt-on replacement for the factory system from the catalytic converter back. It typically utilizes existing exhaust hangers and connection points, meaning no welding or cutting is usually required for installation.

Will this exhaust system affect my car's emissions?

This cat-back system is designed to connect to the stock catalytic converter. While it improves exhaust flow, it does not replace or modify the catalytic converter itself, so it is generally intended to maintain emissions compliance when installed with the factory converter.

HKS Hi-Power 409 Cat-Back Exhaust EJ20 31006-AF009

Name: HKS Hi-Power 409 GC8 EJ20
Brand: HKS
SKU: hks-hks-hi-power-409-gc8-ej20-t14-113225
Price: 1100.00 USD
Availability: InStock

HKS Hi-Power 409 GC8 EJ20

$1100.00

In Stock

HKS Hi-Power 409 cat-back exhaust for GC8 EJ20.

Key Features

Fits GC8 with EJ20 engine.
Constructed from SUS304 stainless steel for durability and corrosion resistance.
Features a large-diameter, straight-through muffler design to reduce backpressure.
Optimized piping diameter for the EJ20 engine to improve exhaust flow.
Designed to bolt directly to the stock catalytic converter and factory hangers.
Produces a deeper, sportier exhaust note.

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're looking to get more out of your GC8 with an EJ20 engine, a cat-back exhaust system like the HKS Hi-Power 409 can make a notable difference. This system replaces the factory exhaust from the catalytic converter back, improving exhaust flow and giving your car a more aggressive sound. It's designed to work with the stock catalytic converter, making it a popular choice for those wanting an exhaust upgrade without altering emissions equipment.

The Hi-Power 409 is constructed from SUS304 stainless steel, which is known for its strength and resistance to corrosion, ensuring it holds up well over time. HKS uses a large-diameter, straight-through muffler design. This setup minimizes backpressure, which can help your EJ20 engine breathe a little easier. You'll likely notice an improved throttle response and a deeper, sportier exhaust note that's more pronounced than the stock system, especially under acceleration. The piping diameter is optimized for the EJ20 engine to balance performance gains with drivability.

Installation of a cat-back system is generally straightforward, often bolting directly to the existing hangers and connections. This HKS system is designed to fit right, simplifying the process for a mechanic or a DIYer. While it's designed to work with the stock catalytic converter, it's always a good idea to check local regulations regarding exhaust modifications. This cat-back system is a solid option for GC8 owners looking for a well-built exhaust that enhances both sound and performance.