Shipping Estimate
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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
K&N 01-09 Audi A4/RS4/S4 Drop In Air FilterExperience enhanced engine performance with the K&N 01 09 Audi A4 RS4 S4 Drop In Air Filter. Designed specifically for Audi models ranging from 2001 to 2009, this precision engineered component provides superior airflow while effectively filtering out contaminants. Crafted by K&N Engineering, a trusted name in high performance automotive parts, this drop in replacement filter offers easy installation and reliable durability. Featuring advanced
Experience enhanced engine performance with the K&N 01-09 Audi A4/RS4/S4 Drop In Air Filter. Designed specifically for Audi models ranging from 2001 to 2009, this precision-engineered component provides superior airflow while effectively filtering out contaminants. Crafted by K&N Engineering, a trusted name in high-performance automotive parts, this drop-in replacement filter offers easy installation and reliable durability.Featuring advanced filtration technology, the K&N drop-in air filter not only boosts horsepower but also improves throttle response, making it an essential upgrade for enthusiasts and professionals alike. Its reusable design allows for cleaning and re-oiling, providing long-term value and environmental benefits over disposable filters.
Whether you're tuning your vehicle for daily driving or preparing it for motorsport activities, this air filter stands out with its robust construction and consistent performance. Benefit from Tuningsupply's commitment to fast shipping and competitive pricing, ensuring you get the best parts without hidden fees or delays.
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
4.4 ★★★★★
Based on 882 reviews
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Product Reviews
★★★★★ 3
Be careful. Prices come off
Size: For Medium Dog, Color: Grassgreen
My dog loves it but it does come apart. He’s not a dog that destroys things but he bit prices off of it.
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Heavy duty
Size: For Medium Dog, Color: Green, Size: For Medium Dog, Color: Green
I just unboxed this so I will update if my opinion changes. I bought the medium dog toy, it’s a a great size, perfect for my 110 pound lab and my 60 pound pit terrier mix. It’s heavy duty so I don’t see this being torn apart anytime soon, it has a slight mint scent (mostly rubber). As of right now, I can confidently say that I see myself buying more from this brand. Hopefully it helps with their stinky breath, if not then at least it’s a fun toy for the pups.
Update: after over a month of play I can say it’s still going pretty strong. My dog did manage to damage it a bit but if you have dogs who are rough on their toys, this is a good option. I was also surprised to find out that there is a squeaker in the base of it, the pups have to bite really hard in order to hear it, heavy duty toy.
I will say one of the only downsides is that it doesn’t seem too appealing to my pups. If there are other toys around they’ll go for the other toys but occasionally will pick this. I still recommend it. Has been lasting us awhile (I have 3 pups).
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Reviewed in the United States on April 17, 2025
★★★★★ 1
Dog ends up eating plastic ends
Size: For Medium Dog, Color: Grassgreen
At first I thought this would be a great toy but in reality the design doesn’t make sense. The little pieces ‘pricks’ of the cactus get chewed off and swallowed by the dog. So you’re essentially feeding them plastic.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
AMAZING for my Doberman
Size: For Medium Dog, Color: Grassgreen, Size: For Medium Dog, Color: Grassgreen
This toy is the absolute BEST! It has out lasted every other toy by a long shot. So far it has lasted 7 months with a very tough chewer. No other toy has lasted more than a week or two aside from this one. I got this the same week I got my Doberman puppy. I am very impressed how well it has lasted so far. It’s still in great shape but is missing some of the “spikes” and has some tooth indents. Squeezer still works well too. It’s one of his favorite toys.
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Reviewed in the United States on December 1, 2025
★★★★★ 5
Puppy loves it! Great activity.
Size: For Medium Dog, Color: Grassgreen
My 5 month old puppy absolutely loves this toy. She spends hours chewing on it and squeaking. It’s heavy enough duty that she can’t bite the side parts off but she can munch on it at the back of her teeth. Great for cleaning teeth! She did bite some of the little nubs off but I expected some of that. It’s really the perfect hardness for her. Worth buying!
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Reviewed in the United States on April 30, 2026
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