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Description
Xforce | 3" Stainless Steel Cat Back Adaptor Pipe | Subaru WRX & STI | E4-SW05-C1Subaru WRX Cat Back Adaptor E4 SW05 C1 The Xforce Cat Back Adaptor pipe is an essential component for Subaru WRX and STI owners installing an aftermarket cat back system where the factory OEM catalytic converter pipe differs in length. This adapter bridges the gap between the cat back system and the factory downpipe, ensuring a secure and leak free connection. Crafted from durable raw 409 stainless steel, it is built to withstand the heat and
Subaru WRX Cat Back Adaptor - E4-SW05-C1
The Xforce Cat Back Adaptor pipe is an essential component for Subaru WRX and STI owners installing an aftermarket cat-back system where the factory OEM catalytic converter pipe differs in length. This adapter bridges the gap between the cat-back system and the factory downpipe, ensuring a secure and leak-free connection. Crafted from durable raw 409 stainless steel, it is built to withstand the heat and vibration of performance driving.
What's in the Box?
- 1x 3" Raw 409 Stainless Steel Adaptor Pipe
- 1x Heavy-Duty Slip Joint Clamp
Features:
This product offers the following functional features:
- Adjustable Slip Joint: Features a versatile slip-joint design that allows for an adjustable length ranging from 260mm to 440mm, providing the perfect fit for various model years and configurations.
- 3" Mandrel-Bent Tubing: The 3-inch diameter ensures no restriction in exhaust flow, maintaining the performance benefits of your high-flow cat-back system.
- 409 Stainless Steel: Constructed from raw 409-grade stainless steel for excellent thermal durability and long-term structural integrity.
- Problem Solver: Specifically designed for vehicles with shorter factory catalytic converter pipes that otherwise would not reach a standard-length cat-back system.
Specifications:
- Make: Subaru
- Model: WRX / STI
- Part Number: E4-SW05-C1
- Material: 409 Stainless Steel
- Diameter: 3.0 Inch
- Length Adjustment: 260mm - 440mm
Important Information
- This part is typically required when fitting Xforce cat-back systems to specific JDM or ADM models where the factory cat length varies.
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for E4-SW05-C1
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| SUBARU | ||||||||
| Subaru | WRX | 1994 | 2014 | Sedan / Hatch | GC / GD / GV | 2.0L / 2.5L Turbo | All Variants | AWD |
| Subaru | WRX STI | 1994 | 2014 | Sedan / Hatch | GC / GD / GR | 2.0L / 2.5L Turbo | All Variants | 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 1606 reviews
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Product Reviews
★★★★★ 5
Quality hide
Size: 2' x 3' (Oblong)
I've purchased 5 hides from different offerings on this platform. I keep coming back to these for my needs due to the quality and price. I also prefer the natural state these are in, compared to the dyed versions offered by others. Highly recommend by me someone who actually uses them for home bedding and camping bedroll purposes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026
★★★★★ 1
Stinks like crazy!
Size: 2' x 3' (Oblong)
This product smells insanely bad. And I have had it airing out for 1 month now. Still bad.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Very soft and thick
Size: 2' x 3' (Oblong)
The sheepskin is very soft and fluffy. The color is good. It has a little bit of an odor which I assume will air out quickly. The other reviews mentioned that it came with a comb. Mine didn't come with a comb. It also was a little more oblong than I expected, but it looked like the pictures in the description. I got it to use as a prayer rug, and it fits in the space I had planned for it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
★★★★★ 4
Decent choice but still not real sheepskin, hence the price.
Size: 2' x 6' (Oblong)
Like it very much and am using it on a massage table for clients. Cozy and well priced this one, just know it’s not real and does have synthetic fibers throughout.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2025
★★★★★ 5
Gorgeous in person!
Color: White & Black, Size: 51"x67", Color: White & Black, Size: 51"x67"
This throw is gorgeous! Quality and elegance fill the room. It is well made and looks exactly like the photo and description. Has the black tips which is what I needed to bring my chair to life. It has a soft lining against your skin and i really didn't have to do much when I removed it from its packaging. It was nice and fluffy and looked beautiful draped on my chair. Many reviews said to shake it to bring flattened fur fluffy again but not on this one. I really love the black shading on it, its just enough. Beautifully packaged and arrived next day! Doesn't get too much better than this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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