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Description
BC0100 - Mitsubishi 4G63/Evo VIII/Evo IX Spring/Titanium Retainer KitDesigned for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1100 Single Free Length 1. 879" Seat 1. 550" @ 84 lbs Open 1. 000" @ 235 lbs Coil Bind 0. 935" Retainer BC2100 Spring Seat OEM Net Cam Lift 0. 520" 13. 2mm
Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures.| Type | BC1100 Single |
| Free Length | 1.879" |
| Seat | 1.550" @ 84 lbs |
| Open | 1.000" @ 235 lbs |
| Coil Bind | 0.935" |
| Retainer | BC2100 |
| Spring Seat | OEM |
| Net Cam Lift | 0.520" / 13.2mm |
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4.5 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Nice Sleeping Partner
Color: Grey
This is a fantastic body pillow. It comes with the cover and is relatively cooler than the bamboo versions. I have slept with this pillow and I am not disappointed with it, unlike my partner on the other side.
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Perfect size even tho I wanted hard/firm. This soft pillow is acceptable.
Color: Grey
I didn’t read every thing properly but even though I got the wrong product ( soft ) it still is not bad. It works for my intended use (between legs ) even though it’s soft I’m still using it for now because after fluffing it out and cramming it in two regular pillow cases it seems to keep a decent thickness to it JUST. In fairness I don’t know if it would get smaller in just one pillow case. But because I’m dumb I will use it for now and I still like it. I can’t comment on the cooling part because I use it under a blanket. The cooling thing only works with low thread count material and if it’s exposed to air. I have neither sorry. We all know the “ cooling” thing is a gimmick any ways. But with the right material and air some things do cool better than others at the same time. Hope this helps lol
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Reviewed in the United States on January 11, 2026
★★★★★ 5
wife loves it as a pregnancy pillow
Color: Grey
For my wife's first pregnancy we got a ton of really bad recommendations for pregnancy pillows that ended up being basically useless -- ones with small beads inside that moved away from where she needed it, weird wedge ones that would just fall out of place immediately, the question mark one that was just uncomfortable.
all she really needed was something like this. large, firm enough, and doesn't just shift around a bunch. her sleep quality during the second pregnancy third trimester has really improved since we got it.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Great product
Color: Grey
Love this pillow...stays cool
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Reviewed in the United States on June 6, 2026
★★★★★ 3
Not 54" long, only 47.
Color: Grey
Not 54" long. It's the same length as my old 47" pillow, laid them out side by side and the same. Measures 47" with the tape measure. I got it because 47" wasn't long enough. It's soft and comfortable though, so I guess if you need a 47" it's fine. Not what I needed though.
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Reviewed in the United States on March 3, 2026
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