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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
4.2 ★★★★★
Based on 1641 reviews
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Product Reviews
★★★★★ 5
LOVE this Charger!
Style: Qi2 Charging Mount
This is one of the best chargers I have ever had! My phone stopped charging via the cord and this was my solution and what a awesome one it is! It charges very fast! I also LOVE the way it looks attached to my Tesla screen. Its like having a second screen. I can do Waze on one screen and Tesla navigation on the main screen. I can also control Sirius XM without having to subscribe to it separately for my tesla - which by the way is ridiculous if you already have a subscription…just make sure you done have Allstate DriveWise or other haptics that track weather you’re using your iphone while driving.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
good product
Style: Qi2 Charging Mount, Style: Qi2 Charging Mount
It exceeded my expectations, a really good product indeed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 5
Nice Phone mount
Great phone mount—stable, easy to use, and gets the job done!
I’ve been using this phone mount for a few weeks now, and it’s exceeded my expectations. It holds my phone securely, even on bumpy roads, and the adjustable arm makes it super easy to get the right angle. Installation was a breeze—took less than 2 minutes. The grip is strong without scratching the phone, and it feels sturdy overall. Highly recommend if you’re looking for a reliable mount!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 2, 2025
★★★★★ 5
Perfect Phone Mount: Secure, Versatile, and Easy to Install!
This phone mount has truly exceeded my expectations! It’s incredibly easy to install and holds my phone securely in place, providing total peace of mind while driving. What really sets this mount apart is its impressive versatility—I've never seen anything quite like it. The base attaches firmly to the air vent, and the adjustable arm allows me to position my phone precisely where I want it, with the freedom to tilt it up, down, left, or right. Plus, it doesn’t interfere with air flow from the AC, which is a huge bonus.
Although my wife's phone case isn't MagSafe-compatible, the included metal ring works seamlessly with it, and my MagSafe case connects just as smoothly.
I couldn’t recommend this product more—it’s been an absolute game-changer for us! This is a personal purchase, and I’m thrilled with it. I’ll be sure to update if anything changes.
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Reviewed in the United States on November 12, 2024
★★★★★ 5
Secure and great fit
I gave this product a chance and it did not disappoint! I did not need to read any instructions for installation and was able to quickly and easily figure it out. Installation takes less than 5 minutes. Just align the mount to the top corner of your tesla screen and turn the dial to adjust the tightness. Once tightness is set, just test to see if it’s really fitted by wiggling it around to check for looseness. I like the fact that I can adjust the angles of the mount easily. My phone can be angles to be on top or side of the Tesla screen. When driving, my phone does not shake one bit. When it’s time to remove my phone, just give it a quick pull to detach and that’s it. The build quality is also very nice and I like the design of it overall. I think it’s a well thought out product. Definitely would recommend to friends and family with Teslas.
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Reviewed in the United States on February 28, 2025
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