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Description
XForce | Header & Metallic Cat Kit | Subaru Impreza GC GD GG N/A 1996–2007 | H2-SW11B-KITXForce Header & Metallic Cat Kit Subaru Impreza GC GD GG N A (1996 2007) H2 SW11B KIT Transform the performance of your Naturally Aspirated (Non Turbo) Subaru Impreza with the XForce Header and Cat Kit. Engineered for Flow, this kit features a high efficiency 4 2 1 Tri Y design and a 100 cell metallic high flow cat. This combination significantly reduces backpressure compared to the factory manifold, providing a noticeable increase in power and
XForce Header & Metallic Cat Kit - Subaru Impreza GC GD GG N/A (1996 - 2007) - H2-SW11B-KIT
Transform the performance of your Naturally Aspirated (Non-Turbo) Subaru Impreza with the XForce Header and Cat Kit. Engineered for Flow, this kit features a high-efficiency 4-2-1 Tri-Y design and a 100-cell metallic high-flow cat. This combination significantly reduces backpressure compared to the factory manifold, providing a noticeable increase in power and throttle response. Please note: This kit produces an equal-length exhaust pulse and does not maintain the traditional "boxer rumble" note. It is designed only to fit with XForce cat-back systems.
What's in the Box?
- XForce 4-2-1 Tri-Y Design Header (Matt Finish Stainless)
- 2.5" High-Flow 100 Cell Metallic Catalytic Converter
- Installation Gaskets & Bolt Kit
Features:
This product offers the following high-performance features:
- Tri-Y Design Header: Optimized 4-2-1 layout for improved mid-range torque and top-end power.
- Matt Finish Stainless Steel: Durable construction with a professional aesthetic.
- High-Flow Metallic Cat: 2.5" outlet with 100-cell core for maximum exhaust scavenging.
- Performance Sound: Delivers a crisp, refined exhaust note (Equal Length).
Specifications:
- Make: Subaru
- Model: Impreza (Naturally Aspirated)
- Series: GC, GD, GG
- Year Range: 1996 - 2007
- Material: Matt Finish Stainless Steel
- Outlet Size: 63.5mm (2.5")
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for XForce H2-SW11B-KIT
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| SUBARU | ||||||||
| SUBARU | IMPREZA | 10/2005 | 12/2007 | Hatchback | - | EJ204 | 2.0L | i | AWD |
| SUBARU | IMPREZA | 12/2002 | 12/2007 | Hatchback | - | EJ201 | 2.0L | i | AWD |
| SUBARU | IMPREZA | 12/2000 | 06/2007 | Wagon | GG (GG9) | EJ201 | 2.0L | i | AWD |
| SUBARU | IMPREZA | 09/1999 | 12/2007 | Sedan | GD (GD9) | EJ201 | 2.0L | i | AWD |
| SUBARU | IMPREZA | 12/2002 | 09/2005 | Hatchback | GG (GGE) | EJ25 | 2.5L | i | AWD |
| SUBARU | IMPREZA | 01/2001 | 09/2005 | Sedan | GD (GDE) | EJ251 | 2.5L | i | AWD |
| SUBARU | IMPREZA | 12/2001 | 11/2002 | Sedan | GD (GDA) | EJ205 | 2.0L | i | AWD |
| SUBARU | IMPREZA | 09/1999 | 10/2000 | Sedan | GC (GC8) | EJ201 | 2.0L | i | AWD |
| SUBARU | IMPREZA | 09/1998 | 09/2000 | Sedan | GC (GC7) | EJ201 | 2.0L | i | FWD |
| SUBARU | IMPREZA | 11/1996 | 09/1998 | Sedan | GC (GC8) | EJ201, EJ20E | 2.0L | i | AWD |
| SUBARU | IMPREZA | 11/1996 | 09/1998 | Wagon | GF (GF8) | EJ201, EJ20E | 2.0L | i | AWD |
| SUBARU | IMPREZA | 07/1996 | 08/1998 | Sedan | GC (GC7) | EJ20E | 2.0L | i | FWD |
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:
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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 1738 reviews
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Product Reviews
★★★★★ 3
Nice but…
Color: Blue Green Orange
Nice but not very sturdy and it comes rolled up so it’s difficult to get it to lay down for your dog.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Both my dogs LOVE find the treat game time!
Color: Orange Red Blue, Color: Orange Red Blue
Both my dogs have loved this for years. Both senior dogs - great fun activity for them and they really hunt for all the treats we hide! My little one usually wins and takes over the game board then uses it as a lounger after :-) It’s very interactive with different ways to hide treats and challenge the dogs.
We’ve had it awhile and it has stood up to many uses and washes. Very easy to store and simply roll out when it’s game time. Highly recommend!
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Perfect for snuffle dogs
Color: Blue Green Orange
If your pup/dog snuffles EVERYTHING or has a demanding intellectual stimulation food regime they set themselves this is for you! I have to roll out the mat above the floor to situation treats, but once it hits the floor my puppy is preoccupied for hours. She has so much fun sniffing through every element to find her treats. While the mat is easy to use I recommend rolling it back up immediately once most treats have been found to avoid chewing on the actual mat pieces (this could present a durability issue as the fabric is chewable). I use different flavored and textured treats throughout the mat as well as her normal dog food to keep her interested. Definitely worth the money if you have a snufflopogus puppy like I do.
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Reviewed in the United States on April 26, 2025
★★★★★ 5
Durable and engaging!!!
Color: Blue Green Orange
This has been a game changer! My dog all of a sudden started gently chewing on a couple of my shoes while I was at work. I set this out right before I leave for work. My shoes have been safe ever since!!!
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Reviewed in the United States on June 11, 2026
★★★★★ 5
My dog LOVES this!
Color: Blue Green Orange
My dog LOVES this thing! It keeps her busy for a good 45 minutes if she gets distracted, we use it to hide her food because she swallows it whole when we feed her in a bowl. So this has slowed her eating wayyyy down and has helped immensely in keeping her occupied.
The quality is nice, i love that it’s felt, BUT it seems like if she scratches at it enough, the strings of the fabric come out and feels fuzzy. I’m not sure how to describe it but it looks like it might experience some pretty bad ware and tear after a while.
I love how easy it is to set up, and the variety of folds help the food get stuck so that my dog can sniff and dig her way around. Very nice toy set up!
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Reviewed in the United States on July 9, 2025