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Description
FUJITSUBO AUTHORIZE S Exhaust For GK7 Impreza G4 2.0 4WD 350-63121Brand FUJITSUBO Series Name AUTHORIZE S Product Number 350 63121 Compatible Car GK7 Impreza G4 2. 0 4WD Compatible Model GK7 Impreza G4 2. 0 4WD Body Type: DBA GK7 Engine Type: FB20 year formula: _x000D_ 2016. 10 ~ Notices 2. 0,4WD vehicles only _x000D_ rear bumper panel (E5517FL000) vehicles equipped with common Remarks Because it does not reach the specified number of rotations, the proximity exhaust noise is measured at 4000rpm. Exit shape 110 _
| Brand | FUJITSUBO |
| Series Name | AUTHORIZE S |
| Product Number | 350-63121 |
| Compatible Car | GK7 Impreza G4 2.0 4WD |
| Compatible Model | GK7 Impreza G4 2.0 4WD Body Type: DBA-GK7 Engine Type: FB20 year formula: _x000D_ 2016.10 ~ |
| Notices | 2.0,4WD vehicles only _x000D_ rear bumper panel (E5517FL000) vehicles equipped with common |
| Remarks | Because it does not reach the specified number of rotations, the proximity exhaust noise is measured at 4000rpm. |
| Exit shape | 110 Ã_ 90Ï_ round Oval slash |
| Pipe diameter | Ï_50.8 |
| Minimum ground clearance | Roof height 1433mm (car verification 1450mm) measured in the car, 180mm at the rear muffler front |
| Accessories list | Gasket packing Ã_ 1 |
| Intermediate acceleration | Stock: 4.8 seconds -> Fujitsubo: 4.8 seconds |
| Maximum output | Stock: 115.9kw (157.6ps) / 5840rpm -> Fujitsubo: 117.2kw (159.4ps) / 5630rpm |
| Maximum torque | Stock: 141.1N · m (14.4kg · m) / 3930rpm -> Fujitsubo: 144.1N · m (14.7kg · m) / 4050rpm |
| Weight | Stock: 6.5kg -> Fujitsubo: 5.6kg |
| Volume idling | Stock: 60dB -> Fujitsubo: 62dB |
| Middle RPM Sound | Stock: 73dB -> Fujitsubo: 83dB |
| Notes | Images are for illustration purpose only. Actual product may vary. |
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4.1 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 4
Slippery Pillow
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Nice and cooling but it’s so slick my pillow sheet doesn’t want to stay on.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Foam Mattress NEEDs Foam Pillows
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
10 stars!! Quality foam, structure & price. Best bang for my buck.
HRV, readiness & total sleep score metrics increased drastically this week. See screenshot :)
Support:
Molds and cushions every crevice under my neck and above shoulders. So comfy
Size:
Adjustable loft but king length is perfect to hug and rest your head. Love love love. The 1st 2 nights were uncomfortable with pillow as is, first night I was up at 3am half asleep pulling foam out but wasn't enough. The second night at 2am I pulled out more stuffing. I was getting frustrated.. my Oura ring showed both nights I was awake every hour. Not good. Before the 3rd night I pulled enough to fill the bag the 2 pillows arrived in. Boom -8hrs sleep and for the first time ii years I achieved 17% Deep sleep. Huge.
Weight:
Perfect weight with adjustment. Squishy and molds to b the contour of my neck and shoulders
Softness:
Like the baby bear.. just right.
Comfort:
Very comfortable after removing 30% foam in both pillows. I actually now have enough to make a 3rd pillow, replace old foam, or adjust OGs, Still to early to measure.
If you have a foam mattress that contours your body but not your head you'll end up with neck and/or back pain from head being elevated- not sinking/molding the body into a foam mattress.
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Reviewed in the United States on July 1, 2025
★★★★★ 3
These are not sized correctly - beware
Color: Blue-ice Plus, Size: King(Pack of 2), Color: Blue-ice Plus, Size: King(Pack of 2)
Edit: I was going to return these pillows but the seller contacted me and offered a full refund due to the size issue without having to send the pillows back.
I am happy with this and happy to keep them on a spare queen size bed as they really are nice pillows. Just the wrong size.
pros: they are a nice pillow and the cooling feature is really great, and you can adjust to your liking
cons: absolutely wrong size. Ordered King, tag says king, all measurements on listing and tag say 20x36, in reality they are more like 20x30. Definitely Queen pillows being sold as King.
I did not see any reviews at first about size issues but after I got these and did a search it does look like others have had the same problem.
A shame, would have given them a great review if they were the correct size
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Cool and comfy
Color: Blue-ice Plus, Size: King(Pack of 1)
Great pillow. Keeps you cool.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Really Good Cooling Pillows for Sleeping
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
These cooling pillows are very soft and provide excellent support for your head and neck. They are adjustable by taking our the stuffing if you need them to be more flat or less firm. The look great and comes in a pack of two which is a great value. During use, I did notice they have great shape retention and it does not take them long to return to their fluffy full shape. I am a hot sleeper and these do keep your head cool - just be aware using a pillow cover does reduce the cool ability but this allows you to adjust for weather like during winters to add a pillow case for extra warmth. Very happy with this purchase and got a second set to replace my old pillows.
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Reviewed in the United States on April 28, 2026