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Description
XForce | 3" Oval Varex Valved Universal Muffler | Twin 3" Tips | 304 Stainless Steel | VMK5-300XForce 3" Oval Varex Valved Universal Muffler with Twin 3" Tips VMK5 300 Make it loud, make it quiet, and make it yours with the Patented Varex Valved universal muffler. This innovative system provides performance enthusiasts with the ultimate exhaust solution: a setup that can be as quiet as a stock exhaust for daily commuting or unleashed to reveal the full, aggressive sound of your engine when you want it. Using the two supplied key fobs, you can
XForce 3" Oval Varex Valved Universal Muffler with Twin 3" Tips - VMK5-300
Make it loud, make it quiet, and make it yours with the Patented Varex Valved universal muffler. This innovative system provides performance enthusiasts with the ultimate exhaust solution: a setup that can be as quiet as a stock exhaust for daily commuting or unleashed to reveal the full, aggressive sound of your engine when you want it. Using the two supplied key fobs, you can toggle between closed, 25%, 50%, 75%, and fully open valve positions to perfectly suit your environment. Crafted from high-grade 304 stainless steel, this muffler features a 3" inlet with a 2-bolt flange and a stylish twin 3" tip outlet. For those looking to take technology even further, this muffler is compatible with the optional Varex Smartbox, allowing for automated Bluetooth smartphone app control, geo-fencing, and more.
What's in the Box?
- 1x Varex Valved Oval Muffler with Twin 3" Tips
- 1x Varex Control Kit (Wiring, Control Box, and Remote)
- 2x Key Fob Remotes
- Installation Hardware
Features:
This product offers the following high-performance features:
- Varex Variable Sound: Integrated electronic valve allows for instant adjustment between street-quiet and high-performance sound levels.
- 304 Stainless Steel: Premium-grade material ensures maximum durability and resistance to oxidation and corrosion.
- Twin 3" Tips: Dual exit tips provide a high-performance aesthetic and fit perfectly in many large-format rear bumper cutouts.
- Universal Fitment: Designed for custom 3" exhaust builds, featuring a 2-bolt flange inlet for secure connection.
- Smartbox Compatible: Ready for integration with the XForce Smartbox (sold separately) for advanced app-based automation.
Specifications:
- Part Number: VMK5-300
- Body Dimensions: 6" High x 10" Wide x 15" Long
- Inlet Diameter: 3" (76mm)
- Inlet Type: 2-Bolt Flange
- Outlet Diameter: Twin 3" Tips
- Material: 304 Stainless Steel
- 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 muffler and may require custom fabrication for fitment. Professional installation and electrical wiring for the valve motor are recommended.
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| Universal | Custom Performance Exhaust | N/A | N/A | Universal | N/A | Universal | Custom Build 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
4.6 ★★★★★
Based on 282 reviews
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Product Reviews
★★★★★ 5
Great toy
Color: Black/Orange
This brand really makes durable toys. They outlast every other toy my dogs have. One dog loves to get the squeaker out of any toy, but he doesn’t rip this one apart. Obviously it won’t last forever, but no toy does! Some other brands of toys only make it a day or two, while these last months to years.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Super durable!
Color: 2PK Green Leaping Phrog
Yellow lab approved bc they are fun to chew. Mom approved because they last forever!
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Reviewed in the United States on January 7, 2026
★★★★★ 5
Great toy for two big German Shepherds
Color: Brown
We only buy Tuffy dog toys now because we have one German Shepherd, and we often watch our daughter's GSD too, and the two dogs tear anything else apart in minutes. Tuffy toys are BY FAR superior to any other dog toy we have tried.
That being said, some Tuffy toys seem to last longer than others with the two dogs, and this one has been pretty good! We've had it for a few weeks now, and it's just now starting to show some white (stuffing) where their teeth have pierced the top of the toy.
That's pretty good, considering they play tug of war with it and can tear into toys pretty hard. If it were just our one dog, I think it would last a lot longer because it's the tug of war between the two of them that does them in faster.
Even so, when they do manage to tear the fabric in vulnerable places, I just pull the stuffing out from that area, and they continue to play with it, sometimes for months!
This one is better than some other Tuffy toys too because it has lots of areas where there is already more fabric and reinforced seams than stuffing, like all the legs on the side, the tail, and even the pincers. So far, they haven't been able to tear into those at all. Just a bit on the top of the head, and so far, no stuffing coming out yet.
This one is a big win for us! When they finally do do it in, I will turn around and buy another Scorch the Scorpion right away!
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Reviewed in the United States on May 5, 2014
★★★★★ 4
Tuffy Desert Phrog vs Lola
Color: Green Leaping Phrog, Color: Green Leaping Phrog
Just a little background about my dog. Lola is a 5 year old corgi-terrier mix with jaws of steal. Lesser stuffed toys have met death in under 5 minutes. Tennis balls last less than a day. Rope toys that do not have frayed ends might possibly last a week (frayed ends never stand a chance). The only toys that she has not managed to destroy are her Kong, a Kong bone, and a racquet ball. I figured I would document the life span of Phrog (Tuffy Scale: 9) before making my final judgement on it’s durability.
Day 1 - Phrog Arrives! Lola was very excited about the arrival of Phrog and immediately went into destruction mode. Phrog did sustain a little damage before we were able to bribe her to drop Phrog and get her understand that he was more fun to play fetch with than to mutilate. The white you see in the picture is not stuffing, but the second layer of defense for the toy. The fact that my living room is not full of stuffing and I didn’t have to pry a squeaker out of my dog’s mouth, I’d say Phrog wins the Day 1 challenge.
Day 9 - Phrog has sustained a little more damage, but not anything life threatening. His side wound is a little bit larger and one of his eyes is half ripped off. For safety reasons, I am going to finish removing the damaged eye and some loose thread from various places. Other than that, Phrog is still holding up and holds top toy spot. I have also found him very useful for dealing with anxiety; the squeaker can often distract her from her stressors and Phrog takes the abuse of her frustrations.
Day 16 - Phrog is starting to show signs of mortal wounds. Lola has made it through the thicker layer around his arm and I can see the stuffing. It is only a matter of time before gets all the way through.
Day 60 - Phrog still lives!!! I have done some surgery on Phrog to reinforce the fabric around his arms, but Franken-Phrog is still the favorite of all of the toys. She will even get brave enough to rescue Phrog from the evil vacuum when he is kidnapped and tortured. I am thinking about purchasing Phrog II for the inevitable day when Phrog goes off to the pet toyland in the sky, but for now, there is only one Phrog for Lola.
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Reviewed in the United States on July 6, 2018
★★★★★ 5
Super tough
Color: Red Warthog
My dogs love these toys!!!
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Reviewed in the United States on February 10, 2026