HKS Stainless Steel Exhaust Manifold - Subaru Models (inc. 2002-2014 WRX / 2004+ STI)
HKS Stainless Steel Exhaust Manifold - Subaru Models (inc. 2002-2014 WRX / 2004+ STI)
HKS
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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 Stainless Steel Exhaust Manifold. This manifold has been designed using durable stainless steel construction that has been combined with smooth bends and premium welds to be a direct replacement for your factory exhaust manifold. The result is more horsepower and torque, improved throttle response with reduced turbo lag, all while saving weight.
DETAILS:
- SUS304 stainless steel construction
- Premium welds
- Designed to optimize exhaust flow while increasing spool
- Unequal design
- Improves horsepower and torque
- Improves throttle response and reduces turbo lag
- Creates an aggressive exhaust rumble
- Works with the stock up-pipe, or any aftermarket up-pipe that utilizes the 2-bolt flange
- Includes (2) manifold gaskets
- Includes (1) up-pipe gasket
- Includes heat wrap
- Includes zip ties and an O2 sensor plug
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 Stainless Steel Exhaust Manifold. This manifold has been designed using durable stainless steel construction that has been combined with smooth bends and premium welds to be a direct replacement for your factory exhaust manifold. The result is more horsepower and torque, improved throttle response with reduced turbo lag, all while saving weight.
DETAILS:
- SUS304 stainless steel construction
- Premium welds
- Designed to optimize exhaust flow while increasing spool
- Unequal design
- Improves horsepower and torque
- Improves throttle response and reduces turbo lag
- Creates an aggressive exhaust rumble
- Works with the stock up-pipe, or any aftermarket up-pipe that utilizes the 2-bolt flange
- Includes (2) manifold gaskets
- Includes (1) up-pipe gasket
- Includes heat wrap
- Includes zip ties and an O2 sensor plug
