HKS Legamax Premium Rear Muffler - Subaru Impreza WRX STI GRB/GRF EJ20 (2007-2014)

Name: WRX STI 07-14 HKS Legamax Premium GRB Muffler HKS
Brand: HKS
SKU: 31021-AF013
Price: 1919 EUR
Availability: InStock

The HKS Legamax Premium Rear Muffler is designed for the Subaru Impreza WRX STI GRB and GRF equipped with the turbocharged EJ20 engine. It combines improved exhaust flow with a refined exhaust note and premium styling, making it an ideal upgrade for drivers who want enhanced performance and appearance without sacrificing everyday driving comfort.

The optimized design improves exhaust flow and reduces back pressure, allowing the engine to breathe more efficiently. This results in improved throttle response, more efficient cylinder scavenging, and a broader, more usable powerband while enhancing the characteristic sound of Subaru's turbocharged boxer engine.

The exhaust note has been carefully tuned to deliver a deep, sporty tone without excessive noise or unwanted cabin resonance. This makes the Legamax Premium an excellent choice for enthusiasts looking to combine performance with refined acoustics during both daily driving and long-distance cruising.

Manufactured from high-quality stainless steel, the rear muffler provides outstanding corrosion resistance, excellent heat resistance, and long-lasting durability. Selected versions are available with titanium exhaust tips, adding an even more distinctive and premium appearance. The system is also JASMA-certified, ensuring compliance with Japanese noise regulations.

Features

Fits the Subaru Impreza WRX STI GRB/GRF EJ20 (2007–2014).
Legamax Premium rear muffler.
Manufactured from high-quality stainless steel.
Optimized exhaust flow with reduced back pressure.
Improved throttle response and a broader, more usable powerband.
Deep, sporty exhaust note with excellent everyday driving comfort.
Excellent corrosion and heat resistance.
Available with titanium exhaust tips depending on the version.
JASMA-certified.
Direct replacement with OEM-style fitment for straightforward installation.

Product video

Technical specification

Article nr:

31021-AF013

Manufacture Partnumber:

31021-AF013

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.