HKS Legamax Premium Cat-Back Exhaust System - Subaru Impreza WRX STI GVB/GVF EJ257 (2010-2014)

Name: WRX STI 10-14 EJ257 HKS Legamax Premium GVB/GVF (MAIN) Catback
Brand: HKS
SKU: 31021-AF022
Price: 2879 EUR
Availability: InStock

The HKS Legamax Premium Cat-Back Exhaust System is designed for the Subaru Impreza WRX STI GVB and GVF equipped with the turbocharged EJ257 engine. Consisting of both the center pipe and rear muffler, this premium exhaust system delivers improved exhaust flow, a refined exhaust note, and exceptional build quality. It is an ideal upgrade for drivers seeking increased performance while maintaining excellent everyday driving comfort.

The optimized design reduces back pressure and improves exhaust flow, 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 distinctive sound of Subaru's turbocharged boxer engine.

The exhaust note has been carefully tuned to produce a deep, sporty tone without excessive noise or unwanted cabin resonance. The Legamax Premium provides the perfect balance between performance and refinement, making it equally suitable for daily driving and spirited performance use.

Manufactured from high-quality stainless steel, the exhaust system offers outstanding corrosion resistance, excellent heat resistance, and long-lasting durability. Depending on the version, the system may be equipped with titanium exhaust tips, adding a premium motorsport-inspired appearance. It is also JASMA-certified, ensuring compliance with Japanese noise regulations, and is designed as a direct replacement for the factory exhaust system with OEM-style fitment for straightforward installation.

Features

Fits the Subaru Impreza WRX STI GVB/GVF EJ257 (2010–2014).
Complete Legamax Premium cat-back exhaust system.
Includes center pipe and 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.
Outstanding 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-AF022

Manufacture Partnumber:

31021-AF022

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.