2008-21 WRX STi | 08-14 Impreza WRX Performance Catted Downpipe
2008-21 WRX STi | 08-14 Impreza WRX Performance Catted Downpipe
EOS Exhaust
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
2008-21 WRX STi | 08-14 Impreza WRX Performance Catted Downpipe
VEHICLE TYPE:
(Compatible With Factory OR Most Aftermarket Front Pipe - No Adapter Necessary)
SURFACE FINISH: Brushed Silver
MATERIAL: T-304 Stainless Steel
DIAMETER: 3.00 Inches
TYPE: Downpipe
A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters, killing the power potential of your car. Within our complete lineup of downpipes, you have the option to add a high-flow, 300 cell catalytic converter, fully machined and contoured flanges with beautiful brushed tubes and black ceramic coating. Whether you're racing time attack or to work and back, we've got the perfect downpipe for you.
For those looking to take the finest downpipe one step further and wring out every last ounce of performance, Ours are fully machined with recesses for each tube as well as a beautiful 3D contour to smoothly transition the irregular shape of your internal wastegate outlet into our divorced tube for tighter boost control. In addition to the machined flanges, limited downpipe tubing material has a brushed finish, for a more uniform, refined appearance.
NOTE: Once you have added our downpipe to your vehicle, you must be tuned. Replacing your factory catalytic converter sometimes causes a ‘cat converter efficiency’ check engine light. You can either use tuning to delete this CEL or you can use a mechanical fix. Extreme Online Store aftermarket downpipes modify OEM emissions control devices and are intended only for off-road racing applications.
By purchasing any aftermarket performance product, the customer takes full responsibility for any use, and/or misuse of the product and agrees that Extreme Online Store holds no responsibility for any consequences, legal, or other, of such use and/or misuse.
- Due to California Vehicle Code Section 27156, we are NOT Able to Ship this Item to any CA Address ( Order will be Cancelled for ALL CA Address )
- This Item is Designed for Off-Road Use ONLY - Might Cause a CEL Check Engine Light.
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.
2008-21 WRX STi | 08-14 Impreza WRX Performance Catted Downpipe
VEHICLE TYPE:
(Compatible With Factory OR Most Aftermarket Front Pipe - No Adapter Necessary)
SURFACE FINISH: Brushed Silver
MATERIAL: T-304 Stainless Steel
DIAMETER: 3.00 Inches
TYPE: Downpipe
A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters, killing the power potential of your car. Within our complete lineup of downpipes, you have the option to add a high-flow, 300 cell catalytic converter, fully machined and contoured flanges with beautiful brushed tubes and black ceramic coating. Whether you're racing time attack or to work and back, we've got the perfect downpipe for you.
For those looking to take the finest downpipe one step further and wring out every last ounce of performance, Ours are fully machined with recesses for each tube as well as a beautiful 3D contour to smoothly transition the irregular shape of your internal wastegate outlet into our divorced tube for tighter boost control. In addition to the machined flanges, limited downpipe tubing material has a brushed finish, for a more uniform, refined appearance.
NOTE: Once you have added our downpipe to your vehicle, you must be tuned. Replacing your factory catalytic converter sometimes causes a ‘cat converter efficiency’ check engine light. You can either use tuning to delete this CEL or you can use a mechanical fix. Extreme Online Store aftermarket downpipes modify OEM emissions control devices and are intended only for off-road racing applications.
By purchasing any aftermarket performance product, the customer takes full responsibility for any use, and/or misuse of the product and agrees that Extreme Online Store holds no responsibility for any consequences, legal, or other, of such use and/or misuse.
- Due to California Vehicle Code Section 27156, we are NOT Able to Ship this Item to any CA Address ( Order will be Cancelled for ALL CA Address )
- This Item is Designed for Off-Road Use ONLY - Might Cause a CEL Check Engine Light.
