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- USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
Supertech Bronze Manganese Valve Guides - Nissan SR20DE/SR20DETSupertech Valve guides are precision machined from high quality Magnesium Bronze material. These guides in combination with low friction nitrated valves provide the best solution for performance and durability. Engine applications Nissan SR20DE & SR20DET 16pc set (8 intake 8 exhaust). Images used for illustration purposes.
Supertech Valve guides are precision-machined from high quality Magnesium Bronze material. These guides in combination with low friction nitrated valves provide the best solution for performance and durability.
Engine applications
- Nissan SR20DE & SR20DET
16pc set (8 intake / 8 exhaust).
Images used for illustration purposes.
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 591 reviews
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Product Reviews
★★★★★ 5
Great value filters – do the job well
Pattern Name: 12x12x1, Style: Merv 8
These filters are a great value for the price, especially getting a 6-pack. They fit perfectly (just keep in mind the actual size listed), and installation is quick and easy.
I’ve been using them regularly and they do a solid job catching dust and keeping the air clean without restricting airflow. Good balance between filtration and performance.
Nice to have multiple on hand so I can swap them out regularly without thinking about it. I’ll definitely keep buying these.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Great Value Air Filters
Pattern Name: 20x20x1, Style: Merv 11, Pattern Name: 20x20x1, Style: Merv 11
These Amazon Basics air filters fit perfectly and were easy to install. They help keep the air cleaner and the HVAC system running smoothly. Good quality for the price, and the 6-pack is convenient to have on hand for future filter changes. Definitely a great value purchase.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Cool, Fluffy, and Excellent Value
Color: White, Size: Queen (Pack of 2)
I recently got the Utopia Bedding Queen Size Bed Pillows (set of 2), and they’ve quickly become my favorite pillows for a good night’s sleep.
Right out of the package, they fluffed up nicely and feel soft yet supportive. The down alternative filling gives a plush, comfortable feel without being too firm or too flat, and the gusseted design adds extra support for back, stomach, or side sleeping. I’ve tried them in all positions, and they hold up well without collapsing overnight.
Another big plus is that they stay cool while I sleep. Even during warmer nights, I don’t feel overheated, which makes a huge difference in comfort. The pillow covers are smooth and feel like hotel-quality fabric, giving the bed a clean, luxurious look.
The only minor thing is that they may take a little time to reach full fluffiness after the first wash, but that’s normal for down alternative pillows.
Overall, these are soft, supportive, and high-quality pillows at a great price. They’ve improved my sleep noticeably, and I’d definitely recommend them for anyone looking for a comfortable, versatile pillow set
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Well priced luxury feel.
Color: White, Size: Queen (Pack of 2)
This set of 2 pillows is very luxurious and comfortable to sleep on with good height but not so much as to elevate or lower the head to an uncomfortable degree. I just received them so they need time to air and expand fully but right out of the compacted box they are full and very comfortable. The fabric is very soft and there is no odor. These pillows are definitely a good price for such a luxury item. I think I will enjoy them for some time to come.
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Soft...but fluffy and tall
Color: White, Size: Standard (Pack of 2)
I've only had these pillows for about a week. They are a great quality pillow. The cover is soft and seems well made. My only complaint is that they are VERY full pillows. If you're tall with broader shoulders, you'll probably love them. If you're shorter with a smaller frame you will probably feel like your head is too high and your neck at a weird angle (my problem). There seemed to be mixed reviews about softness....I would consider these a nice medium pillow. Soft filling but firm enough that your head doesn't sink to the bed. Definitely NOT a down-like pillow, so if that's what you're looking for, this is not for you.
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Reviewed in the United States on April 10, 2026