HKS Silent Hi-Power Exhaust - 2002-2007 Subaru WRX / STI (GDB/GDA/GGA)
HKS Silent Hi-Power Exhaust - 2002-2007 Subaru WRX / STI (GDB/GDA/GGA)
HKS
Couldn't load pickup availability
- ✔ Verified fitment & authentic brands
- ✔ Secure checkout via Shopify, Stripe, and PayPal
- ✔ Enthusiast-run support — not a marketplace
- ✔ Fair resolution on damaged or incorrect orders
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.
NO GUESSWORK,
JUST PARTS THAT WORK.
Let’s finish that car.
PRODUCT DETAILS
HKS Silent Hi-Power Exhaust - 2002-2007 Subaru WRX / STI (GDB/GDA/GGA)
The HKS Silent Hi-Power mufflers are the perfect choice for car enthusiasts, offering top-notch performance and a sporty, sleek design. Made from high-quality SUS304 stainless steel, these mufflers have exceptional durability and a polished appearance. The innovative Silent Chamber technology greatly reduces low-frequency cabin noise, resulting in a smoother and quieter ride while maintaining optimal exhaust gas flow and overall performance. With their advanced engineering and stylish look, these mufflers provide the perfect balance of comfort and efficiency.
DETAILS:
- Made from 304 stainless steel
- Single rear exit location
- Main tubing diameter of 2.95 inches
- Moderate sound level
- Round muffler shape
- One exhaust tip, polished finish
- Stainless steel tip material with a 4.72-inch outlet diameter
- Round tip shape in HP(TYPE-S) style
- Silent Hi-Power exhaust series
- Consists of two pieces
- Stock sound levels: 82 dB (standard) and 67 dB (idle)
- HKS sound levels: 90 dB (standard) and 72 dB (idle)
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.
HKS Silent Hi-Power Exhaust - 2002-2007 Subaru WRX / STI (GDB/GDA/GGA)
The HKS Silent Hi-Power mufflers are the perfect choice for car enthusiasts, offering top-notch performance and a sporty, sleek design. Made from high-quality SUS304 stainless steel, these mufflers have exceptional durability and a polished appearance. The innovative Silent Chamber technology greatly reduces low-frequency cabin noise, resulting in a smoother and quieter ride while maintaining optimal exhaust gas flow and overall performance. With their advanced engineering and stylish look, these mufflers provide the perfect balance of comfort and efficiency.
DETAILS:
- Made from 304 stainless steel
- Single rear exit location
- Main tubing diameter of 2.95 inches
- Moderate sound level
- Round muffler shape
- One exhaust tip, polished finish
- Stainless steel tip material with a 4.72-inch outlet diameter
- Round tip shape in HP(TYPE-S) style
- Silent Hi-Power exhaust series
- Consists of two pieces
- Stock sound levels: 82 dB (standard) and 67 dB (idle)
- HKS sound levels: 90 dB (standard) and 72 dB (idle)
