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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
For Your Every Summer RSVP, with Code: SUMMER15
Description
K&N Intake System-Harley Davidson (RK-3951S)K&N Street Metal Air Intake Systems for Harley Davidson motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High Flow Air Filter and a high volume cast aluminum housing. If you're looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less.
K&N Street Metal Air Intake Systems for Harley Davidson® motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High-Flow Air Filter and a high-volume cast aluminum housing. If you're looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high-flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less. The K&N air filter is washable, reusable, pre-oiled and ready for installation. This intake system features a matte silver housing with polished fins. Internal breathers provide a sleek, clean appearance. This air intake has classic styling with a savage appeal.- Guaranteed to increase horsepower
- Designed to improve throttle response and engine sound
- Cast aluminum high-volume, performance air intake housing in silver
- Washable and reusable K&N High-Flow cotton air filter that provides outstanding performance and protection
- Integrated internal velocity stack
- Built-in breathers replace external OE breathers
- Easy to install, usually in 90 minutes or less
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
4.5 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Excellent
Extremely comfortable pillows. I would highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Pillows
I love the comfort and quality of the pillows.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
So comfy
These pillows are great! So comfy, no neck or back pain. I highly recommend them!
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Reviewed in the United States on May 1, 2026
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ Incredible Comfort – Like Sleeping in a Luxury Hotel Every Night!
I am beyond impressed with the DIORIS Pillows Queen Size Set of 2! From the moment I laid my head on them, I knew I had found my new favorite pillows. They strike the perfect balance between soft and supportive, making them ideal for back, stomach, and side sleepers like me and my partner.
The fluffy down alternative fill feels just like the real thing—plush, breathable, and incredibly comfortable without triggering my allergies. These pillows don’t flatten out overnight either; they maintain their shape and bounce back beautifully each morning.
What really stood out to me was the hotel-quality feel. The outer fabric is smooth, skin-friendly, and breathable, helping me stay cool and sweat-free throughout the night. I wake up feeling refreshed, well-rested, and with no neck pain—which is a huge win!
If you're looking for affordable luxury, I highly recommend these DIORIS pillows. They’ve completely upgraded my sleep experience, and I’ll definitely be buying another set for the guest bedroom!
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Reviewed in the United States on June 4, 2025
★★★★★ 5
Pillowd
Color: Blue, Size: Queen Size Set of 2
They are huge and very fluffy queen size pillows, and they’re so comfortable. I’m actually laying on one right now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
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