GKTech - SR20DE/SR20DET Rocker Arm Stoppers / RAS - sr20-rask

GKTech - SR20DE/SR20DET Rocker Arm Stoppers / RAS - sr20-rask

Marsoni

M251S

$105.03

Get it in 3 business days with 1 day shipping. Friday, May 29

GKTech - SR20DE/SR20DET Rocker Arm Stoppers / RAS - sr20-raskUsed for extra reliability at high RPM in SR engines. These rocker arm stoppers hold the lash adjuster side of the rocker arm at a fixed clearance, preventing extra movement at high RPM. Fits all RWD SR20DE and SR20DET configurations. Ie. S13 240sx S14 240sx S15 Silvia etc. Laser Cut Mild Steel and Zinc coated Whats the advantage of rocker arm stoppers? Rocker arm stoppers hold the lash adjuster side of the rocker arm at a fixed clearance, preventing

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I have just started taking this item and it seems to work. My sleep is better, deeper and I awaken feeling rested. I strongly hope that this item will continue giving me great sleep results! The Magnesium is very beneficial too. I would recommend this supplement! I will purchase again provided it keeps working!!

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Reviewed in the United States on May 25, 2026

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lateforthetrain

Louisville, US

★★★★★ 4

Reliable

Size: 90 Count (Pack of 1)

The brand has a good reputation. I prefer to order products with the Thorne brand than others, because of its reputation. The magnesium by Thorne is well worth the price. It is reputable and for sleep it works well. Other health benefits are included so not just for sleep but overall health. Good product.

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Reviewed in the United States on May 28, 2026

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Diana E

Belleville, US

★★★★★ 5

Great brand great quality

Size: 90 Count (Pack of 1)

I bought this supplement during my pregnancy and absolutely love the quality of Thor supplements. It mainly contains magnesium and I highly recommend this brand. They use the purest ingredients and the effects are truly impressive. Since magnesium can cause side effects I was pleased to find this one didn’t have any for me.

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Reviewed in the United States on May 4, 2026

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Sashi O'Hara

Waukegan, US

★★★★★ 5

Great product

Size: 90 Count (Pack of 1)

really does help with sleep and muscle relaxation! 10/10 product.

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Reviewed in the United States on May 29, 2026

Verified Purchase

Timothy A Dick

Lexington, US

★★★★★ 5

excellent product, 100% digestible

Flavor Name: Bone (S), Size: 6 Count (Pack of 1)

excellent product, dog loves these. 100% digestible. not like rawhide that get stuck or can cause a blockage. the Vet said these are great, for a 10+ year old dog these help to keep her teeth clean. highly recommend

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Reviewed in the United States on March 21, 2026