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Description
XForce | 3" Catback Exhaust System | Subaru Impreza WRX & STI GD 2000–2007 | E4-SW05-MP01-CBSXForce 3" Catback Exhaust System Subaru Impreza WRX & STI 20002007 Transform your Subaru WRX or STI into a high performance machine with the XForce Cat Back Exhaust system. Precision engineered for the GD chassis, this 3" exhaust upgrade is designed to maximize exhaust flow and significantly increase horsepower and torque. Experience the renowned, aggressive deep boxer rumble that defines the WRX legacy. Crafted from robust raw 409 stainless steel,
XForce 3" Catback Exhaust System - Subaru Impreza WRX & STI - 2000–2007
Transform your Subaru WRX or STI into a high-performance machine with the XForce Cat Back Exhaust system. Precision-engineered for the GD chassis, this 3" exhaust upgrade is designed to maximize exhaust flow and significantly increase horsepower and torque. Experience the renowned, aggressive deep boxer rumble that defines the WRX legacy.
Crafted from robust raw 409 stainless steel, this system features mandrel-bent 3" piping for unrestricted flow. The setup includes a centre hot dog resonator to refine the tone and an oval rear muffler with twin 80mm polished tips for a classic performance aesthetic. Designed for a precise fit, this bolt-on system is the perfect way to take your EJ20 or EJ25 powered Subaru to the next level.
Features:
- High-Flow 3" Tubing: Mandrel-bent raw 409 stainless steel for maximum performance.
- Signature Sound: Centre hot dog resonator and oval rear muffler deliver a deep, sporty rumble.
- Twin 80mm Tips: Polished dual-outlet design for a premium look.
- Bolt-On Installation: Engineered for a perfect fit on manual transmission vehicles.
Important Fitment Notes:
- Transmission: This system is designed to fit Manual vehicles only.
- Connecting Pipe: 2001+ models require the E4-SW05-C1 connecting pipe to be ordered separately for a complete bolt-on application when fitting to a vehicle with a standalone factory catalytic converter.
Specifications:
- Part Number: E4-SW05-MP01-CBS
- Material: Raw 409 Stainless Steel
- Diameter: 3 Inch (76mm)
- Muffler: Oval Twin-Tip Rear Muffler
- Approx. Install Time: 90 Minutes
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 E4-SW05-MP01-CBS
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| SUBARU | IMPREZA | 10/2000 | 11/2002 | Sedan | GD (GDA) | EJ205 | 2.0L | WRX Turbo | AWD |
| SUBARU | IMPREZA | 11/2001 | 09/2005 | Sedan | GD (GDB) | EJ207 | 2.0L | WRX STi | AWD |
| SUBARU | IMPREZA | 10/2005 | 12/2007 | Sedan | GD (GDG) | EJ255 | 2.5L | i WRX | AWD |
| SUBARU | IMPREZA | 10/2005 | 12/2007 | Sedan | GD (GDF) | EJ257 | 2.5L | WRX STi | 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:
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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
4.8 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Perfect Enrichment for my Puppy
Size: Small, Number of Items: 1
Amazing!! Super durable and exactly what I was looking for! My dog loves this and it keeps him very busy! It fits about half a cup inside and can be used anywhere.
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Can't be clean but provides fun.
Size: Small, Number of Items: 1
It's well made and our pup really does like it. The only thing is, it doesn't fully open to clean it out. I wouldn't buy it again for that fact. It's tough plastic and sturdy.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Best dog toy!!
Size: Large, Number of Items: 1, Size: Large, Number of Items: 1
Best dog toy ever. They stayed occupied and have fun !
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Reviewed in the United States on June 8, 2026
★★★★★ 3
Good contruction but needs a couple revisions
Size: Small, Number of Items: 1
Searching for an interactive toy to feed my beagle his meals from, I first tried the
. It split open too easily in rough play and only had the capacity to hold half of a meal.
Next I tried
for it's larger capacity but it broke at the lid (to Premier's credit they replaced it but I feared it would simply break again).
Now on to the Bob-A-Lot. This is a heavy, well made product. I was surprised by the weight. My dog can pick it up but can't carry it for very long. I feel it's not going to break like the others did. That said, the extra weight makes it a noisy toy especially on hard wood floors.
The small Bob-A-Lot holds a little over 1 cup of food (large holds 3 cups) but there is a caveat. This is the capacity of the lower chamber. There is actually a separate chamber in the top of the toy that only holds about quarter cup. As a result I have to shake and shake the toy myself to get the food to drop into the lower chamber to load in a complete meal. It's either that or insert food 1 piece of kibble at a time. I wish this toy screwed apart like the IQ Treat Ball or Tug-A-Jug. Despite it's appearance, it does NOT screw apart in the middle.
Also slightly annoying is the bottom door doesn't stay fixed into position well. The IQ Treat Ball smartly has several positions for the door to stay locked in. The Bob-A-Lot door is fully adjustable but has often come open more than I want during feeding. As a result the kibble will spill out faster which ruins the challenge. I inquired to Starmark support and they suggested that I use a bit of cardboard or some such to try and jam the door into a specific position. This right here tells me that some additional design could be used.
I'd say that the Bob-A-Lot was designed with dogs in mind but not humans. It's a chore to load in the food. And then the door opens too much giving the dog an easy meal. I might even guess that it takes less time for my dog to empty it than it takes for me to fill it. Overall it's the best option I've found but I'm still searching for the perfect combination of all 3 of the toys.
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Reviewed in the United States on July 30, 2011
★★★★★ 5
Aggressive chewer approved
Size: Large, Number of Items: 1, Size: Large, Number of Items: 1
Got this to help amuse my 90lb GSD while I was out of town for a month. He gets one meal a day in it, and really enjoys the work. It’s easy, not a puzzle, no frustration, just a “job.” He chewed on the yellow top pretty aggressively while I was gone, and it still works fine. This is a dog that destroys even the most durable chew toys in minutes to hours when he’s anxious, and I imagine he experienced some anxiety while I was gone especially during periods when he was alone. So, I’m quite pleased with the durability. This will definitely stay in the meal service rotation and I will replace it if necessary. One thing to note: the fill hole is pretty small. His kibble is small enough that one might think it would easily pour right in, but no. At some point I’ll get annoyed enough to pull out my drill and make that hole larger.
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Reviewed in the United States on March 22, 2026