What components are included with the HKS Hiper cat-back exhaust system?

When you purchase HKS part number 3106-EX008, you receive the complete cat-back exhaust section. This includes all the piping from the catalytic converter back to the rear of the vehicle, designed to directly replace your stock exhaust components.

What kind of sound can I expect from this HKS exhaust?

The HKS Hiper series is engineered to provide a sportier and more aggressive exhaust note compared to the factory system. It aims to enhance the sound of the boxer engine without creating excessive drone or being overly loud for everyday driving.

Is this exhaust system difficult to install on my WRX or STI?

This cat-back exhaust system is designed as a direct bolt-on replacement. This typically means it installs using the factory mounting points and connections, generally requiring no welding or cutting for a more straightforward installation process.

HKS Hiper Cat-Back Exhaust 3106-EX008

Name: HKS 02-07 WRX / 04-07 STi Hiper Exhaust
Brand: HKS
SKU: hks-hks-02-07-wrx-04-07-sti-hiper-exhaust-t14-658
Price: 808.19 USD
Availability: InStock

HKS 02-07 WRX / 04-07 STi Hiper Exhaust

$808.19

In Stock

HKS Hiper cat-back exhaust for 02-07 WRX / 04-07 STi.

Key Features

This is the HKS Hiper cat-back exhaust system, part number 3106-EX008.
Designed for 2002-2007 Subaru WRX and 2004-2007 Subaru STI models.
Constructed from durable stainless steel to resist corrosion.
Improves exhaust flow for potential gains in horsepower and torque.
Offers a sportier exhaust note suitable for daily driving.
Direct bolt-on replacement for the factory exhaust system.

This cat-back exhaust system is specifically designed for the 2002-2007 Subaru WRX and 2004-2007 Subaru STI. Please verify fitment for your specific vehicle model and year.

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Product Details

This HKS Hiper cat-back exhaust system is what you get when you order part number 3106-EX008. It includes the full cat-back section, designed to replace your factory exhaust from the catalytic converter back to the tailpipe. This system is built for the 2002-2007 Subaru WRX and the 2004-2007 Subaru STI, offering a significant upgrade in both sound and performance over the stock setup.

Crafted from high-grade stainless steel, this exhaust is built to last. The material choice helps resist corrosion from road salt and moisture, ensuring it holds up over time. The Hiper series from HKS is known for its performance-oriented design, aiming to improve exhaust flow. This means less restriction for your engine, which can lead to a more responsive feel and a noticeable increase in horsepower and torque. You'll also get a sportier, more aggressive exhaust note that really lets the boxer engine sing, without being overly loud or droney for daily driving.

Installing a cat-back system like this is a popular modification for WRX and STI owners looking to get more out of their car's performance and sound. It's designed as a direct bolt-on replacement for the factory exhaust, meaning no welding or cutting is typically required, making the installation process more straightforward. This HKS system is a solid option for anyone wanting to enhance their Subaru's exhaust system with a well-regarded brand.