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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
4.2 ★★★★★
Based on 367 reviews
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Product Reviews
★★★★★ 5
Epic. Works great.
Color: Black
Works great every day. Super powerful and smooth compared to my old battery powered one. The shaft is much thicker and is more securely positioned so I can't imagine it becoming tweaked off balance like my old one. And it comes with an extra mixer attachment! I imagine I've put that away for a long time, but we'll see. Easy to turn on and off with one hand, but I can imagine it being less easy than a simple push button for someone with decreased thumb dexterity or mobility. I do wish the lowest speed was slightly lower, but it hasn't caused any splashing or other detriment. The speed adjustment is very smooth and power is abundant. Love the stand, Usb c charge port is solid, battery life is excellent.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
You want this one, for power and quality and saving on AA battery costs
Color: Black
Yes. You want this one, for power and quality and saving on AA battery costs — buy it now. Don’t waste any more time comparing products.
After hours, days, weeks, of researching and comparing, I ordered this one. I do not regret it. It is powerful. It was less than $25 when I bought it. It has a USB charger port and it feels solid in your hand. It has a turn-knob at the top to control the variable speed immersion blender aka milk frother aka wand frother. Charge battery fully for 2hrs before first use and then you’re all set. It works very well. It functioned as expected and then even better. Yes. It exceeded expectations. I hope it lasts a long time. It feels like it is very well made and high quality. Classiest and best wand frother I have ever owned. And I’ve owned over 3-4 in the past 10yrs.
I got this one at $25 instead of the highest-rated one for $9.99 because those require AA batteries and this frother however is USB-C rechargeable!
So in 1-2 years it will have paid for itself in battery costs alone.
But there’s no price I can put on how enjoyable it is to use this super powerful, super smooth, high quality, wand frother.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
★★★★★ 5
Quality Design
Color: Gray
Excellent frother/mixer
Pros:
- Quality feels premium.
- Plenty of power to mix even with a drink packed with ice and peanut butter. Basically a mini handheld mixer.
- Ease of use is great. I appreciated that this had a longer brother so I can mix drinks in taller cups. Also the grip is fantastic and it is easy very easy to change the speed with just one hand so you can hold the drink with the other.
Longevity - So far it's been holding up and hasn't needed a battery replacement.
Cons:
None so far.
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Reviewed in the United States on December 10, 2025
★★★★★ 5
Highly recommend!
Color: Gray
Love this frother!!! Purchased to replace an Aerolatte that stopped working after a reasonable period of use. Right out of the box, it was charged and ready to go. I’ve been using it daily for about 5 weeks on the same charge it had on arrival and it’s still going strong. Love the variable speed and easy to work with one hand. And this baby can froth! It froths far better than our old Aerolatte. Also love the rechargeable feature so no more AA batteries wasted. This handy kitchen tool makes my morning coffee a true highlight. Highly recommend the Maestri milk frother!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Best Frother Ever!
Color: Black
Great little frother and very powerful after just one charge. I haven’t charged it since the first day and it is still going strong after 3 weeks. I use it daily for coffee froth, but have used it for mixing other things as well. It works great on mixing drink powders into water and for making salad dressing from scratch. It’s one of the best things I’ve purchased on Amazon for kitchen tools. My old frother ate through batteries and was 1/10th as powerful. This one really is amazing. Great quality heavy duty but still small machine. Extra attachment heads are also a bonus.
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Reviewed in the United States on May 23, 2026
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