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Description
XForce | 3" Varex Valved Cat Back Exhaust | Subaru WRX STI 2003–2007 | E4-SW05VMK5-CBSXForce 3" Varex Valved Cat Back Exhaust System Subaru WRX & STI E4 SW05VMK5 CBS The XForce Cat Back Exhaust System featuring the patented Varex Rear Muffler is the ultimate upgrade for 20032007 Subaru WRX and STI owners who demand total control over their vehicle's acoustic personality. Expertly crafted from high quality raw 409 stainless steel, this system utilize 3" mandrel bent tubing to maximize exhaust flow and significantly improve engine
XForce 3" Varex Valved Cat-Back Exhaust System - Subaru WRX & STI - E4-SW05VMK5-CBS
The XForce Cat-Back Exhaust System featuring the patented Varex Rear Muffler is the ultimate upgrade for 2003–2007 Subaru WRX and STI owners who demand total control over their vehicle's acoustic personality. Expertly crafted from high-quality raw 409 stainless steel, this system utilize 3" mandrel-bent tubing to maximize exhaust flow and significantly improve engine performance. The heart of the system is the Varex valved muffler, allowing you to switch between a discreet, neighbor-friendly quiet mode and an aggressive, high-flow boxer growl at the touch of a button. Whether it's the daily commute or a weekend track day, this system provides the perfect balance of performance, versatility, and style.
What's in the Box?
- 1x 3" Raw 409 Stainless Steel Center Section with Hot-Dog Resonator
- 1x Varex Valved Oval Rear Muffler
- 2x 80mm Polished Exhaust Tips
- 1x Varex Control Kit (Wiring Harness & Remote Keys)
- All Required Gaskets and Hardware
Features:
This product offers the following high-performance features:
- Patented Varex Valve Technology: In-muffler valve control allows for manual adjustment of sound levels from stock-quiet to open-performance.
- 3" Mandrel-Bent Tubing: Ensures a smooth, unrestricted exhaust path for improved turbo spool and horsepower gains.
- Raw 409 Stainless Steel: Durable industrial-grade construction designed to withstand high heat and provide long-lasting service.
- Acoustic Versatility: Equipped with a center hot-dog resonator to refine the tone and a Varex oval rear muffler for ultimate sound customization.
- Twin 80mm Tips: Classic twin-tip design provides a clean, performance-oriented aesthetic that fits perfectly in the factory bumper cutout.
Specifications:
- Make: Subaru
- Model: WRX / STI
- Year Range: 2003–2007
- Material: Raw 409 Stainless Steel
- Pipe Size: 3 Inch (76mm)
- Tip Size: Twin 80mm
- Muffler Type: Varex Valved
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
- Fitment Note: Fits Manual transmission vehicles only.
- Installation Note: Some models require connecting pipe E4-SW05-C1 to be ordered separately for bolt-on application when fitting to vehicles with a standalone catalytic converter.
Vehicle Applications:
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| SUBARU | ||||||||
| SUBARU | WRX / STI | 2003 | 2005 | Sedan / Wagon | GD / GG | EJ20 Turbo | Manual Only | AWD |
| SUBARU | WRX / STI | 2005 | 2007 | Sedan / Wagon | GD / GG | EJ25 Turbo | Manual Only | 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
4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Game changer
Size: Width 14", Adjustable Desk Mount, Style: Dual, Size: Width 14", Adjustable Desk Mount, Style: Dual
**update 2026**
Okay I've just upgraded this mount so let me update my review. I am keeping 5 stars because for an entry level budget mount it did its job.
Here's why I changed: if your desk is not solid wood, the base of the mount is too narrow and will start to sink in. Also, after a few years one of the arm started to sag. I upgraded for a mount double this price so not outrageous but the base is wider and the arms are sturdier. I am still happy I purchased that one because for my budget it did the job so these years and it's better than not having it. Still recommend if your budget is low and you need to save desk space, it's a great starter. If you can wait and save twice this, I suggest you do and skip to the better ones though.
**original review 2020**
Been using this mount for about 3 months, time to review:
It is an absolute game changer! Cheap, easy to assemble and install, feels sturdy. At first my wife was skeptical because she thought it would be a gimmick but it frees up so much space, it brings both monitors to the same eye-level height, the mouse cable never gets stuck under the laptop anymore, and it holds the cables in place so that when she has to run with the laptop they don't fall behind the desk anymore (see picture). All these little details improved her productivity. And just visually it looks much better I think. Laptop: 15" Monitor: 24"
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Reviewed in the United States on January 9, 2020
★★★★★ 3
Works fine overall, but... "you get what you pay for"
Size: Width 16.5", Fully Adjustable Desk Mount, Style: Single
Filed under: "you get what you pay for"? I like the price point and FOR THE MOST PART this arm is getting the job done in my home office space *but* a few points...
(1) The little "claw" to hold the laptop in place has these little "locks" that are on the under side which... that's OK but they can be hard to see and it just seems like an extra part that can break -- vs. a ratcheting clamp.
(2) The tension on every movable part was ALL out of whack when I first installed it. I set the laptop onto the cradle and it basically collapsed -- flipping down as far as it would go. I had to adjust the tension to be significantly higher in order to hold steady -- but NOW it's hard to "fine-tune" because the tension on that joint is so stiff. On the other hand, the main "elbow" joint is easy to adjust *and* holds steady all day, but within seconds of taking my laptop off of the arm, it springs up -- sometimes rather violently.
(3) The overall build quality seems a little weak. The main screw to hold the laptop stand in place had a little cap to make it easier to twist it by hand -- but this snapped off during the initial installation. Not a deal-breaker because once it was in place, I didn't expect to move it again BUT it was still disappointing.
(4) Not a deal-breaker for me BUT... there's practically no included cable management. Just... be aware of that.
Otherwise... instructions were pretty clear vis-à-vis how to install and -- like I said -- it seems to be getting the job done w/r/t/ getting the laptop up off the desk and MOSTLY aligned with my other monitors.
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Reviewed in the United States on December 23, 2025
★★★★★ 5
Superb quality. Couldn't be happier.
Size: Width 14", Adjustable Desk Mount, Style: Dual
I have been looking for a separate monitor and laptop stand for a while now and recently came across this set up from WALI. For under $50, I was a little nervous about the quality before it arrived. I had no reason to be concerned. It is a SOLID set up. Everything is high-quality metal construction and secure when assembled. Set up took some doing but only because I am not the most, um, detailed direction follower...Make sure you tighten the tray and post screws TIGHTLY initially to prevent any kind of movement after you've assembled it (don't ask me how I know).
I have a 15'' Asus laptop and the lip on the tray holds it fine as long as I don't tip it too far forward. But it's an unusually thick laptop body so I imagine most won't have an issue. Again, it's not a problem for me at all, just limits slightly the angle I can tilt the tray.
If you are ok with the configuration shown in the primary product image (i.e., monitor above tray) then it will be no problem as is. My desk isn't that deep so I had wanted them to be side-by-side. I was able to set it up that way out of the box. But my monitor was just a hair too big and it cast a shadow on the laptop monitor in the side by side configuration. Support was kind enough to send me a second base post and screws so I could use the grommet and clamp bases at the same time (as is you can only use one or the other). This of course only works if you already have a hole in the desk (or are willing to put one in yourself). Many thanks to WALI's support crew for accommodating me.
I use a standing desk. If movement while you type is something you're fussy about (I'm not) note there will be some shake, especially in the standing position. But for most, it should be absolutely no problem.
Overall a fantastic deal. Highly recommend it!
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Reviewed in the United States on April 18, 2018
★★★★★ 5
A Powerhouse USB Hub That Handles Everything I Throw at It
Color: Gray
I’ve been using this 17‑Port 96W Powered USB 3.2 Hub for a few weeks now, and it has completely streamlined my workspace. With 10 USB‑A 3.2 ports, 2 USB‑C 3.2 ports, 3 QC 24W fast‑charging ports, and an SD/TF card reader, this hub truly replaces multiple adapters and dongles. The 10Gbps transfer speeds are legit — large files from my SSDs move quickly and consistently without random disconnects.
The 96W power supply is a huge plus. Even with multiple external drives, peripherals, and a webcam connected, everything stays stable. No flickering, no dropouts, no “device not recognized” issues. The individual power switches are surprisingly useful too — I can turn off specific drives without unplugging anything.
The build quality feels solid and premium. It doesn’t slide around, and it stays cool even under heavy load. The SD/TF card reader is fast and convenient for photo/video work. The QC fast‑charging ports are also great for topping up my phone or accessories, though they’re charging‑only (no data), which is clearly stated.
If you’re someone who uses multiple devices — external HDDs, flash drives, cameras, microphones, card readers, etc. — this hub is a game changer. It’s perfect for PC setups, content creators, IT workstations, and anyone who needs serious connectivity.
Overall, this is one of the most capable, stable, and well‑designed USB hubs I’ve used. Absolutely worth it.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Need lots of connectivity + charging. EXCELLENT.
Color: Gray
Problems with my original USB hub required something better. This unit has allowed me to connect all my peripherals to my laptop and I haven't had any problems with the USB port reliability I was dealing with. I'm using two hubs in series and now everything is working perfectly.
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Reviewed in the United States on April 25, 2026
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