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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
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Description
DNA Air Filter Stage 2 for KTM Duke 125 / 200 / 250 / 390 (2017-2020)Make: KTM HUSQVARNA PN: P KT3N20 S2 Stock Air Box With Stock Filter: 37. 40 CFM Stock Air Box With DNA Stage 2 & DNA S1 Filters Air Flow: 73. 30 CFM DNA Increased Air Flow: +95. 99% DNA Filtering Efficiency: 98 99%. DNA replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop in
- Make: KTM / HUSQVARNA
- PN: P-KT3N20-S2
- Stock Air Box With Stock Filter: 37.40 CFM
- Stock Air Box With DNA Stage 2 & DNA S1 Filters
- Air Flow: 73.30 CFM
- DNA Increased Air Flow: +95.99%
- DNA Filtering Efficiency: 98-99%.
DNA replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. They offer bigger air-flow, with almost 99% filtering efficiency.
- This new Stage 2 Air Filter features DNA®’s advanced FCd (Full Contour design) and designed to work exclusively with the DNA stock replacement air filter. Correctly used it will increase the airflow, torque and power of the engine.
- Installation info are included with this new DNA Stage 2 Air Filter.Fuel injection re calibration is suggested but NOT necessary.
- The filtering efficiency of the assembly with the DNA Stage 1 Air Filter (P-KT3N18-0R) is extremely high at 98-99% filtering efficiency (ISO 5011).
- The airflow of this new DNA Stage 2 Air Filter (P-KT3N20-S2) combined ALWAYS with the DNA Stage 1 Air Filter (P-KT3N18-0R) is +95.99% over the KTM / HUSQVARNA stock application!
- Stock air box with DNA S1 & S2 air filter flow: 73.30 CFM(Cubic feet per minute) @1.5” H2O corrected @ 25 degrees Celsius.
- Stock air box with KTM/HUSQVARNA stock paper filter air flow: 37.40CFM (Cubic feet per minute) @1,5” H2O corrected @ 25 degrees Celsius.
- This DNA® Stage 2 Air Filter is designed for:‘Road, Off Road & Race use'
Duke Series Models:
- KTM Duke 125 (17-20)
- KTM Duke 200 (2020)
- KTM Duke 250 (17-20)
- KTM Duke 390 (17-20).
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
4.1 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great balls of fun!
Size: Large, Color: Ball-Red
One of the best toys that was ever made! My wife likes to put little treats in there and I'll bat the ball around. The room gives their hours of entertainment. She puts little things like hands of corn i
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 3
Choking hazard from Internal Pieces if Ball
Size: Large, Color: Ball-Blue
The Ball is Very Tough. However, the inside Parts Broke and Fall out and can be Choking Hazard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 5
Great for chewers!
Size: Large, Color: Ball-Blue
We have a super high energy one year old pup who destroys practically every toy she gets. This one is excellent! It makes a fun but not annoying sound and she hasn’t been able to destroy it yet. The test hole is a fun addition to keep her busy.
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Reviewed in the United States on November 16, 2025
★★★★★ 5
Very sturdy toy for aggressive chewers
Size: Large, Color: Bone-Blue
My 80-pound American Bully loves this toy. It is very sturdy. Good price. Highly recommend.
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Reviewed in the United States on April 24, 2026
★★★★★ 1
My Dog Loved It—Until It Stopped Working
Size: Large, Color: Ball-Red
I purchased this treat-dispensing dog toy for my German Shepherd, and for the first couple of days it worked exactly as advertised. When rolled or tossed, it made an engaging sound that immediately caught my dog’s attention and encouraged him to interact with the toy to get the treats out. He absolutely loved it.
Unfortunately, after only a few days, the sound feature stopped working. Then it mysteriously started working again for a short period, so I thought the issue had resolved itself. However, it has now stopped completely. No matter how much I shake, roll, or toss the toy, it no longer makes any sound.
I went out of town and didn’t realize the return window had passed while I was gone. By the time I returned, the return deadline had already expired, which was disappointing because I would have returned it when the problem first appeared.
Based on my experience, I cannot recommend purchasing this toy. While many of the reviews seem positive, perhaps I received a defective unit. It’s disappointing that it stopped functioning properly after barely a month of use.
That said, my dog genuinely enjoyed it when it was working, and I would appreciate it if the manufacturer would stand behind their product and offer a replacement as a courtesy. I would be happy to return the defective toy. If a replacement performed as intended, I would gladly reconsider my opinion.
For now, however, I am very disappointed with the functionality and reliability of this product.
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Reviewed in the United States on June 5, 2026
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