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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
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 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 |
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
4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 3
Ehh. Not for me.
Color: Gray
Foot slides when walking in them. The fit was tighter than lead to believe. It did hold the moisture in but the silicone patch is small
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Transformative for Dry, Cracked Heels!
Color: Original Grey
I recently purchased Dr. Frederick's Original Moisturizing Heel Socks, and they have truly transformed the condition of my feet! I can’t recommend them highly enough.
Effective Moisturization: These socks are infused with moisturizing agents that work wonders. After just a few uses, I noticed a significant reduction in dryness and cracking on my heels. My feet feel softer and smoother, and I love that I can wake up to beautifully moisturized skin.
Comfortable Fit: The socks are incredibly comfortable to wear, with a snug yet gentle fit. I appreciate that they don’t feel restrictive, allowing me to walk around my home while wearing them without any discomfort. They are also lightweight, making them easy to slip on before bed.
User-Friendly: They are super easy to use—just wear them overnight, and let the socks do their magic. I love the simplicity of incorporating them into my nighttime routine.
Durable Quality: The quality of the socks is impressive. They wash well and have maintained their shape and effectiveness after multiple uses. I feel confident that they will last a long time.
Final Thoughts: If you're struggling with dry, cracked heels, I highly recommend Dr. Frederick's Original Moisturizing Heel Socks. They are a fantastic investment in foot care and have made a noticeable difference in the health of my skin. These socks have become a must-have in my self-care routine!
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Reviewed in the United States on October 4, 2024
★★★★★ 5
These worked for me!
Color: Original Grey
They worked great. I bought these for cracked sore heels. It took 2-3 weeks but my heels no longer hurt and the cracks have closed and look more like an indention than a crack now. They feel so much better, but I'll probably wear them another week just to be sure they stay healed. They look and feel like regular socks from the outside but only cover the heel with the toe open. Not think but not thick, again like regular socks. They would probably be slippery on a smooth surface the same as socks. The inside feels like rubber or something smooth at the heel. I have washed them once each pair and accidentally dried one pair in the dryer. They still seem to feel the same so I think they're fine. They're pretty inexpensive and had different colors and sizes.
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Reviewed in the United States on February 10, 2026
★★★★★ 4
Truly Helped My Cracked Heels
Color: Original Grey
I didn't include a photo cause they look exactly like their advertisement photo.
I so liked the silicon-type heel lining as it kept the heel-repair cream on my heel and did not get soaked up by the sock. But, it is so, so slippery when walking around in them! Take care to be mindful when you set each foot down as the lotion can slide your heel across the sock quite a bit. If these socks were for an elderly person, I would have them only sit while using the sock - no walking around for fear of falling.
I have larger ankles and found that having both the top and the bottom hems/elastic, etc. the same size to be quite troublesome and was not a nice feeling or fit on my upper hem that hit my ankle. Don't get me wrong, I am so glad that I got them and I continue to use them and they are helping my horribly-cracked heels greatly, but I find that I have to keep moving the top hem up and down so that it doesn't stay in one position as it cuts in to my ankle.
My feedback and advice might be to please make the upper hem somewhat larger than the one that is on the bottom and goes over my actual foot. They really should not be the same circumference...or else make different sizes - S, M, L, etc. That's really my only complaint or "con" to ordering these.
I think they are a great concept and I like the fact that I can throw them in the washer and dryer.
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Reviewed in the United States on June 8, 2024
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing).
Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026