HKS Legamax Premium Exhaust System - Subaru WRX STI (2015+, US Specification)

Name: WRX STI 15- HKS Legamax Premium
Brand: HKS
SKU: 31021-BF001
Price: 2207 EUR
Availability: InStock

The HKS Legamax Premium Exhaust System is designed for the Subaru WRX STI (2015+, US specification), combining enhanced performance, premium styling, and refined acoustics. Engineered to provide improved exhaust flow and a sportier exhaust note while maintaining excellent everyday driving comfort, it is an ideal upgrade for enthusiasts seeking both performance and sophistication.

The optimized design reduces back pressure and improves exhaust flow, allowing the turbocharged boxer engine to breathe more efficiently. This results in quicker throttle response, more efficient cylinder scavenging, and a broader, more usable powerband, delivering a more responsive and engaging driving experience.

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 finish that perfectly complements the WRX STI's performance-oriented character.

The exhaust note has been carefully tuned to produce a deep, sporty tone under acceleration while maintaining comfortable sound levels during everyday driving. The result is an ideal balance between performance and refinement, making the Legamax Premium suitable for both daily use and spirited driving.

Designed as a direct replacement for the factory exhaust system, it provides OEM-style fitment for straightforward bolt-on installation without modifications.

Features

Fits the Subaru WRX STI (2015+, US specification).
Complete Legamax Premium exhaust system.
Manufactured from SUS304 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.
Precision-engineered HKS construction for premium fit and finish.
Direct replacement with OEM-style fitment for straightforward installation.

Product video

Technical specification

Article nr:

31021-BF001

Manufacture Partnumber:

31021-BF001

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.