HKS Super Turbo Muffler Cat-Back Exhaust System - Subaru WRX / STI EJ20 GDB A-D (2000-2004)

Name: WRX / STI 00-04 EJ20 HKS Super Turbo Muffler Catback
Brand: HKS
SKU: 31029-AF002
Price: 1823 EUR
Availability: InStock

The HKS Super Turbo Muffler Cat-Back Exhaust System is designed for the Subaru WRX and STI GDB A–D (2000–2004) equipped with the turbocharged EJ20 boxer engine. Engineered to deliver maximum exhaust flow, improved engine performance, and a carefully tuned exhaust note, it provides an ideal balance of high performance and everyday driving comfort.

The optimized design reduces back pressure and improves exhaust flow, allowing the engine to breathe more efficiently. This results in quicker throttle response, more efficient exhaust scavenging, and a broader, more usable powerband. The system is equally well suited for both stock engines and high-performance builds equipped with upgraded turbochargers.

Manufactured from SUS304 stainless steel, the exhaust system offers outstanding corrosion resistance, excellent heat resistance, and long-lasting durability, even under demanding driving conditions. HKS's precision engineering ensures exceptional fitment and a premium-quality finish.

The exhaust note has been specifically engineered for Subaru's turbocharged boxer engine, producing a deep, sporty, and well-balanced tone without excessive cabin resonance during normal driving. Combining high exhaust flow with controlled sound levels, the Super Turbo Muffler is an excellent choice for both street and performance applications.

Designed as a direct bolt-on replacement, the exhaust system provides OEM-style fitment for straightforward installation with no modifications required.

Features

Fits the Subaru WRX / STI GDB A-D with the EJ20 engine (2000-2004).
Complete Super Turbo Muffler cat-back exhaust system.
Manufactured from SUS304 stainless steel.
Optimized exhaust flow with reduced back pressure.
Suitable for both stock engines and vehicles equipped with upgraded turbochargers.
Improved throttle response and a broader, more usable powerband.
Deep, sporty exhaust note with excellent everyday driving comfort.
Outstanding corrosion and heat resistance.
Direct bolt-on installation with OEM-style fitment.

Product video

Technical specification

Article nr:

31029-AF002

Manufacture Partnumber:

31029-AF002

In October 1973, two talented and young engineers had a vision; to design and build high performance engines and components that major OE manufacturers could not, or would not, produce. HKS pioneered the Japanese aftermarket industry by delivering a host of exciting new products, including the first commercially available electronic turbo timer and boost controller. Other early products included piggy-back ECUs and sophisticated fuel management tools. HKS was clearly driving performance trends for Japanese vehicles forward!

Today, HKS is one of the world's most well-known brands and the obvious choice for you who builds a JDM car. In the assortment you will find everything from chassis products to exhaust systems and turbo kits. HKS is behind some of the coolest builds and professional drivers in the world, so when you choose HKS, you choose the best.