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Description
Xforce | 3" Stainless Steel Downpipe Kit | Subaru WRX STI 08-21 & Forester XT 08-13 | ES-SW08-KITBSubaru WRX STI Forester XT EJ20 and EJ25 2008 to 2021 Downpipe kit ES SW08 KITB Unlock the maximum potential of your turbocharged Boxer engine with the Xforce 3" Downpipe Kit. Specifically designed for EJ20 and EJ25 platforms, this kit replaces the highly restrictive factory downpipe to significantly reduce backpressure at the turbocharger. Featuring a high quality cast bell mouth dump pipe, it allows exhaust gases to exit the turbine wheel and
Subaru WRX STI Forester XT EJ20 and EJ25 2008 to 2021 Downpipe kit - ES-SW08-KITB
Unlock the maximum potential of your turbocharged Boxer engine with the Xforce 3" Downpipe Kit. Specifically designed for EJ20 and EJ25 platforms, this kit replaces the highly restrictive factory downpipe to significantly reduce backpressure at the turbocharger. Featuring a high-quality cast bell-mouth dump pipe, it allows exhaust gases to exit the turbine wheel and wastegate more efficiently, resulting in faster turbo spool, increased horsepower, and improved throttle response.
Note: This downpipe is specifically designed to bolt up ONLY to an Xforce cat-back exhaust system. Engine ECU tuning is mandatory after installation to optimize performance and ensure engine safety.
What's in the Box?
- 1x Cast Stainless Steel Bell-Mouth Dump Pipe Section
- 1x 3" Polished Stainless Steel Pipe with 100-Cell Metallic Cat
- 1x Integrated Stainless Steel Flex Bellows
- Installation Gaskets and Hardware
Features:
This product offers the following high-performance features:
- Bell-Mouth Dump Design: The cast stainless steel top features a wide bell-mouth design to minimize turbulence from the internal wastegate and turbine outlet.
- 100-Cell Metallic High-Flow Cat: Equipped with a 100-cell metallic substrate catalytic converter, providing the highest possible flow while maintaining core efficiency.
- 3" Polished 304 Stainless Steel: Crafted from premium 304-grade stainless steel with a polished finish for superior corrosion resistance and a show-quality look.
- Stainless Steel Flex Bellows: Features integrated flex bellows to absorb engine movement and vibrations, preventing stress on the turbocharger flange and manifold.
- Precision Engineering: Designed for a precise fit on the EJ-series turbo platforms from 2008 through 2021.
Specifications:
- Make: Subaru
- Model: WRX / STI / Forester XT
- Engine: EJ20 / EJ25 Turbo
- Year Range: 2008 - 2021
- Material: 304 Stainless Steel
- Pipe Size: 3.0 Inch
Important Information
- System Compatibility: This kit is designed to bolt exclusively to Xforce cat-back systems.
- Tuning Required: ECU re-mapping is required immediately after installation.
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for ES-SW08-KITB
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| SUBARU | ||||||||
| Subaru | WRX | 2008 | 2014 | Sedan / Hatch | GE / GH / GV / GR | 2.5L Turbo EJ25 | Standard / Premium | AWD |
| Subaru | WRX STI | 2008 | 2021 | Sedan / Hatch | GR / GV / VAB | 2.5L Turbo EJ257 | STI / Spec R | AWD |
| Subaru | Forester | 2008 | 2013 | SUV | SH | 2.5L Turbo EJ25 | XT | AWD |
Warranty Information
| Product Type | Warranty Period |
|---|---|
| 304 & 201 Stainless Steel Exhaust Systems | 60 Months |
| Accessories | 12 Months |
| Catalytic Converters | 12 Months |
| Electronic Products (Including SmartBox) | 12 Months |
| Mild Steel & 409 Stainless Steel Exhaust Systems | 24 Months |
| Mild Steel Headers | 12 Months |
| Stainless Steel Headers | 24 Months |
| Universal 304 Stainless Steel Mufflers | 24 Months |
| Universal Mild Steel & 409 Stainless Steel Mufflers | 12 Months |
Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
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Product Reviews
★★★★★ 5
Hydrating and Powerful Barrier Repair Serum!💧
This serum has been life-changing in calming and restoring my skin barrier. It absorbs quickly, feels lightweight, and instantly soothes irritation without feeling greasy. I’ve noticed my skin looks healthier and more balanced after just a few uses. It’s gentle enough for sensitive skin and works especially well when my skin barrier feels compromised. It is also fragrance-free, which I always appreciate! Trust me, it’s well worth the money!
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Works as created.
Have been using for a few weeks and have noticed 15% improvement in skin and issues. I did notice a difference in the first 24 hours as advertised. It is suggested need a full month I think to see the true results.
At 50 I have pre menopausal skin issues- the redness & inflammation, acne, tightness and sensitivity. It is helping in addition to the other Avene skin products that come in the trial box for sensitive or SOS skin box trial size I think ot is called.
This has made a difference. It is easy to apply. I use morning and night. It is different from the Cicalfate + Cream. I use that also as needed. I am happy and recommend it. The price is higher than what I spend. But I wanted to try it to see of i need more than just what was in the Avene sensitive skin trial size box they have. My skin is really red and irritated so the $40 for the bottle is was willing to try because it's painful on my face.
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Okay serum, not as good as the cream though
I am obsessed with the cream version of this so I thought I’d give this a try. The dropper top allows for easy application. The formula is light and non greasy and absorbs easily. No harsh fragrances. I would use it when I had eczema flares on my face and feel like it didn’t work near as well in helping with skin irritation as the cream does. As of now I don’t use it as part of my regular skin care. Do I think it’s a bad product? No, but it didn’t really work wonders for me. Not sure I would purchase again.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Helps with redness and softens skin
I have sensitive, mild rosacea skin. Had a facial recently and the aesthetician suggested I get a serum to help with moisturizer as I am almost 40. I’ve tried a lot of serums and either they are sticky and not really hydrating or break my skin out in a rash. This serum is amazing. Helps calm the redness in my cheeks and my skin is moisturized and soft all day. It feels a little sticky at first but it goes away. I apply in this order OSEA sea mineral mist toner to prep the skin, this serum and top off with Chanel La Solution 10 for sensitive skin.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Sensitive skin
Such a good product. I use after micro needling when skin is sensitive. Also a great product to use as a barrier serum when starting tretinoin cream.
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Reviewed in the United States on April 24, 2026