XForce | 2.5" Oval Varex Valved Universal Muffler | Side Mounted Motor | 304 Stainless Steel | VMK40-250
SKU: 89673324099

XForce | 2.5" Oval Varex Valved Universal Muffler | Side Mounted Motor | 304 Stainless Steel | VMK40-250

Sale price$202.10 Regular price$224.55
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Ships within 48 hours Β· Estimated delivery Jul 7 - Jul 12

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Description

XForce | 2.5" Oval Varex Valved Universal Muffler | Side Mounted Motor | 304 Stainless Steel | VMK40-250XForce 2. 5" Oval Varex Valved Universal Muffler with Side Mounted Motor VMK40 250 Varex mufflers utilize our patented technology to combine the civil design of a stock muffler with the high flow performance of a racing unit into one single, compact assembly. This universal 2. 5" muffler is the ultimate tool for custom exhaust builders, providing the ability to adjust the exhaust note on the fly. Crafted from high grade 304 stainless steel, this model

XForce 2.5" Oval Varex Valved Universal Muffler with Side Mounted Motor - VMK40-250

Varexβ„’ mufflers utilize our patented technology to combine the civil design of a stock muffler with the high-flow performance of a racing unit into one single, compact assembly. This universal 2.5" muffler is the ultimate tool for custom exhaust builders, providing the ability to adjust the exhaust note on the fly. Crafted from high-grade 304 stainless steel, this model features a specialized side-mounted motor configuration, making it the perfect choice for vehicles with limited vertical clearance or unique underbody packaging requirements. With the included Varex controller and dual key fobs, you can instantly switch from a quiet, neighborhood-friendly tone to a deep, high-performance growl, ensuring your vehicle sounds exactly how you want it, exactly when you want it.

What's in the Box?

  • 1x Varex Valved Oval Muffler (Side Mount Motor)
  • 1x Varex Control Kit (Wiring, Control Box, and Remote)
  • 2x Key Fob Remotes
  • Installation Hardware

Features:

This product offers the following high-performance features:

  • Patented Varex Valve Technology: Electronically controlled internal valve allows for seamless sound adjustment from quiet to loud.
  • Side-Mounted Motor: Engineered for tight spaces where top-mounted actuators may interfere with the vehicle floor or chassis.
  • 304 Stainless Steel: Premium construction for maximum resistance to corrosion and high-temperature durability.
  • 2.5" Center Inlet: Features a 3" long inlet with a 2-bolt flange for secure and easy integration into custom 2.5-inch exhaust systems.
  • Performance Sound: Delivers a refined, non-restrictive exhaust path when open, maximizing power and acoustic output.

Specifications:

  • Part Number: VMK40-250
  • Body Dimensions: 6" High x 10" Wide x 16" Long
  • Inlet Diameter: 2.5" (63.5mm)
  • Inlet Type: 2-Bolt Flange (3" Long)
  • Outlet Diameter: 2.5" Single Pipe (5" Long)
  • Material: 304 Stainless Steel
  • Motor Position: Side Mounted
  • Actuator Clearance: Requires 2-inch clearance for motor operation

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability
  • Installation Note: This is a universal component and may require custom modification for fitment. Electrical wiring to the cabin is required for valve operation.

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
Universal Custom Exhaust Build N/A N/A Universal N/A Universal Custom Fitment N/A

Β 

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: 89673324099

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Spoot
Draper, US
β˜…β˜…β˜…β˜…β˜… 4
Good Fit, Fold Lines
5'9, around 125-130 pounds, and the Small fit me just fine. Adjuster strap provides a great range of... adjustment. Good waistcoat if you are looking for something quick and cheap. With it being cheap, however, the material suffers. Due to it being folded while in shipping, there are seem lines going down the sides of the waistcoat which make it poke out and look awkward.
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Reviewed in the United States on April 9, 2022
H
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Heather S.
Lexington, US
β˜…β˜…β˜…β˜…β˜… 5
Great vest for a great price!
This vest is more slim fitting, stylish, & flattering than many vests. It fits as expected, but it is adjustable in the back, so you do have some wiggle room to tighten & loosen it if you’re unsure about the size. My son wore this vest to homecoming. He is 5’ 10” & 150 lbs, & the size small was a good fit.
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Reviewed in the United States on October 20, 2022
M
Verified Purchase
Max R.
Whiting, US
β˜…β˜…β˜…β˜…β˜… 5
Great Quality Vest
Great quality vest versatile for all occasions. I personally felt it ran a bit tight (I ordered a large and felt like I was sucking in a bit the whole time) but I think an XL would have been too big. Overall impressed and happy with purchase.
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Reviewed in the United States on January 2, 2025
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RichieVee at the Piano
Draper, US
β˜…β˜…β˜…β˜…β˜… 3
BUTTONS LIKE A SMALLER SIZE. GOOD QUALITY.
DESIGN IS EXCELLENT. QUALITY IS FINE. I WEAR A LARGE, BUT THIS VEST, IN A LARGE, DID NOT ALLOW ME TO BUTTON ... AS IF IT IS A MEDIUM FIT. WILL RETURN, BUT IT IS A VERY GOOD VEST OTHERWISE.
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Reviewed in the United States on September 23, 2025
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David Bays
Los Angeles, US
β˜…β˜…β˜…β˜…β˜… 5
Well made and looks great.
This vest fits well and is well made. It feels tailored. I feel great and look good wearing it.
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Reviewed in the United States on December 3, 2025

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