SKU: 34054101649

XForce | 3" Varex Valved Cat Back Exhaust | Subaru WRX STI 2003–2007 | E4-SW05VMK5-CBS

Sale price$526.10 Regular price$584.55
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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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:
  1. 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
SKU: 34054101649

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Amazon Customer
Phoenix, US
★★★★★ 3
Just ok - too thick to apply evenly
Style: SPF 50, Size: 8 Fl Oz (Pack of 1)
Just ok - very thick, so difficult to apply evenly. I use this for outdoor cycling and it works, but it's so thick that it tends to clump instead of smoothly covering the skin.
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Reviewed in the United States on April 16, 2026
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JP
Whiting, US
★★★★★ 5
Favorite sunscreen
Style: SPF 50, Size: 8 Fl Oz (Pack of 1)
Doesn't go on greasy. Doesn't stink. Don't get sunburnt wearing it.
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Reviewed in the United States on May 6, 2026
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Mirelkis Renal
West Palm Beach, US
★★★★★ 5
Essential daily protection to complete my routine
As part of my skincare routine focused on improving dark spots on my face, sunscreen is a must. The Neutrogena Ultra Sheer Dry-Touch SPF 70 has a smooth texture, a light and fresh scent, and feels comfortable on the skin. It absorbs quickly and doesn’t leave a heavy or greasy finish, which makes it easy to use every day. I like how it protects my skin without altering my natural skin tone, making it a perfect final step in my routine. It complements my skincare well and helps me stay consistent with daily protection. The pack also includes three tubes, which is very convenient and practical.
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Reviewed in the United States on April 16, 2026
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CH
Bozeman, US
★★★★★ 5
This is the suntan lotion I’ll buy from now on.
Really nice suntan lotion. I brought it to a quick Florida trip in early summer. Very light compared to other products we have on hand. Not greasy. I plan to buy this in future once we run out. I also really liked the set of three 3oz containers which made it perfect for travel. I give this product 5 stars without hesitation.
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Reviewed in the United States on June 8, 2026
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vanboneye
Lake Worth, US
★★★★★ 5
Nice sunscreen.
Great sunscreen. Works into skin without residue. I get good sun protection and lasts most of the day.
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Reviewed in the United States on April 3, 2026

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