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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
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Description
K&N Universal Air Filter - Oval Straight - 3.688in Flange ID x 10.25in Base O/S Length x 7.875in HExperience superior air intake performance with the K&N Universal Air Filter, model RC 5178. Designed for versatility, this oval straight air filter is perfect for a wide range of automotive applications. Its flange inside diameter measures 3. 688 inches, providing a secure and efficient fit for your vehicle's intake system. The base overall length of 10. 25 inches and height of 7. 875 inches offer ample filtration surface for optimal airflow and
Experience superior air intake performance with the K&N Universal Air Filter, model RC-5178. Designed for versatility, this oval straight air filter is perfect for a wide range of automotive applications. Its flange inside diameter measures 3.688 inches, providing a secure and efficient fit for your vehicle's intake system.The base overall length of 10.25 inches and height of 7.875 inches offer ample filtration surface for optimal airflow and engine protection. Crafted with K&N's trusted engineering standards, this air filter helps improve horsepower and acceleration while allowing your engine to breathe easier.
Built for enthusiasts who demand quality and performance, the K&N Universal Air Filter features a reusable and washable design. This ensures long-term durability and cost savings compared to disposable filters. Whether you’re upgrading your hot rod, kit car, or everyday ride, this filter delivers reliable filtration that keeps harmful contaminants out.
Easy to install and maintain, it is suitable for those looking for a universal fit without compromising on quality. Shop with confidence knowing Tuningsupply brings you competitive pricing and fast delivery across Europe, backed by expert support from fellow automotive fans.
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
4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
Soft Material, but Color Not as Expected
Size: Queen, Color: Oatmeal, Size: Queen, Color: Oatmeal
I did not open or use this sheet set because the color wasn’t suitable for the occasion I intended. I prefer to return items in unused condition so they can be resold as new, so I cannot comment on the exact fit. From a price point, it's value for money.
From touching the fabric through the packaging, the material feels soft and of fair quality. There is no unpleasant smell, and the overall functionality seems fine based on its construction.
My only disappointment is the oatmeal color—it looks somewhat dull and gives off an aged or slightly used appearance. I was hoping for a brighter, creamier tone. Aside from the color issue, the product appears to be well made and comfortable, which is why I’m giving it four stars.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
Nice and soft
Size: Queen, Color: Chambray
Update: I’m very happy with this sheet set! I’m currently only using the fitted sheet as I don’t have a need for the top sheet or pillow cases right now. It hasn’t popped off the mattress at all like the previous cheep sheet I had.
Original post: The sheet set arrived today. Haven’t actually tried it yet because I need to wash it first. From I can see, looks great. Once it’s washed and on my bed, and can figure out how to update my review I will do so accordingly. It’s soft like most people have said and the color is nice, though they didn’t have my favorite color purple in a shade I like so I got the ‘fancy blue’ (don’t remember the actual name of the color) because I desperately needed a new sheet of quality.
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Very comfy sheets, nice fabric
Size: Full, Color: Oatmeal
I wasn’t expecting such good quality forthis price. They’re very soft, but of fairly thick fabric. I’m sleeping great on them. The pockets are deep enough for an 8” foam mattress plus my 3” topper. Will be getting another set for the second bedroom.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Great Sheets!
Size: Twin, Color: Oatmeal
Super soft, wash up beautifully, seem well made — very happy! It’s very hard to find 100% cotton t-shirt type sheets and these are really lovely.
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Reviewed in the United States on June 1, 2026
★★★★★ 3
Weirdly textured
Size: King, Color: Dark Gray
I have bought and loved jersey sheets in the past, that have all been as soft as a well worn cotton t-shirt. These arent soft. They have the stretch of jersey, but not the soft smooth texture that they should have. Even after washing a few times these are one of my least favorite sheets I've ever bought on Amazon.
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Reviewed in the United States on May 30, 2026