


HKS 10 Hyundai Genesis Coupe 3.8L M-Series Spark Plugs (Heat Range 8)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
HKS 10 Hyundai Genesis Coupe 3.8L M-Series Spark Plugs (Heat Range 8)SKU: 50003 M40XL UPC: 4957266720424 HKS M Series Spark Plugs (Heat Range 8) 2010 2016 Hyundai Genesis Coupe 3. 8L HKS M40XL M Series spark plugs deliver precision ignition for the 2010 2016 Hyundai Genesis Coupe 3. 8L V6 engine. This set of 6 iridium plugs replaces stock units with a colder heat range 8 for high rev performance driving. Expect sharper throttle response smoother idle and added horsepower from efficient combustion. Key Features 0. 4mm
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4.6 ★★★★★
Based on 1548 reviews
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Product Reviews
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support.
It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.)
I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night.
I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable.
I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing.
Would highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
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Reviewed in the United States on May 22, 2026
★★★★★ 5
So nice I bought more!
Color: Gray, Size: Queen(Pack of 2), Color: Gray, Size: Queen(Pack of 2)
As soon as I pulled these pillowcases out of the package I had to buy more! They are soft to the touch and feel cool. At $14.99 for a set of two, these are a great deal! I immediately ordered two more sets.
The pillow cases are made of a 90% Nylon 10% Spandex fabric. I typically only like 100% cotton, but these do a great job of staying cool. They do get a little warm after laying on the pillow for a while, but I'm a restless sleeper and move around a lot, so my pillow manages to stay cool.
The pillowcases are washable in the washing machine. They can be dried on low in the dryer.
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Reviewed in the United States on May 2, 2026
★★★★★ 4
ONE pillowcase
Color: White, Size: Queen(Pack of 1)
The photo is of TWO pillowcases.
One is all you get.
It is very comfortable
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Reviewed in the United States on May 26, 2026
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