HKS Legamax Premium Exhaust System - 2015-2021 Subaru WRX/STI
HKS Legamax Premium Exhaust System - 2015-2021 Subaru WRX/STI
HKS
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Every product is sourced from authorized manufacturers or distributors. If something isn’t right with fitment or condition, we’ll work with you to resolve it fairly.
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PRODUCT DETAILS
RallySport Direct proudly carries performance upgrades by one of the biggest names in the industry, HKS. Since 1973, HKS has been a leading innovator in turbocharger technology, and many of their products have been utilized on world-class race cars of all makes and genres. Today, HKS continues to engineer high-performance engine components to improve the power and the performance of your vehicle.
Here, you are looking at the HKS Legamax Premium Cat-Back Exhaust System. This exhaust system features a unique piping design that will not only improve the power and performance of your vehicle, but it will also provide your vehicle with a more aggressive sound over the factory muffler.
DETAILS:
- 304 stainless steel construction
- 3" piping diameter leading to the muffler
- Quad 3.50" polished tips
- Improves both horsepower and torque
- Improves throttle response with reduced turbo lag
- Creates a very aggressive exhaust sound
- Exhaust hangers welded onto the OEM locations for a direct fitment
- Includes new gaskets and hardware for the installation
WHY WE CARRY THIS
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
RallySport Direct proudly carries performance upgrades by one of the biggest names in the industry, HKS. Since 1973, HKS has been a leading innovator in turbocharger technology, and many of their products have been utilized on world-class race cars of all makes and genres. Today, HKS continues to engineer high-performance engine components to improve the power and the performance of your vehicle.
Here, you are looking at the HKS Legamax Premium Cat-Back Exhaust System. This exhaust system features a unique piping design that will not only improve the power and performance of your vehicle, but it will also provide your vehicle with a more aggressive sound over the factory muffler.
DETAILS:
- 304 stainless steel construction
- 3" piping diameter leading to the muffler
- Quad 3.50" polished tips
- Improves both horsepower and torque
- Improves throttle response with reduced turbo lag
- Creates a very aggressive exhaust sound
- Exhaust hangers welded onto the OEM locations for a direct fitment
- Includes new gaskets and hardware for the installation
