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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
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Description
Powerflex Rear Shock Mounts - BMW E8X | E9XFitment Note: PFR5 416 fits standard shock absorbers and performance shock absorbers with a 10mm thread PFR5 416 12 fits performance shock absorbers with a 12mm thread Powerflex polyurethane bushings are designed to decrease the amount of deflection in your car's suspension which improves handling, driver feedback, and tire wear. Powerflex uses their own premium polyurethane formulation to provide minimal NVH (noise, vibration, harshness) and
Fitment Note:
- PFR5-416 fits standard shock absorbers and performance shock absorbers with a 10mm thread
- PFR5-416-12 fits performance shock absorbers with a 12mm thread
Powerflex polyurethane bushings are designed to decrease the amount of deflection in your car's suspension which improves handling, driver feedback, and tire wear. Powerflex uses their own premium polyurethane formulation to provide minimal NVH (noise, vibration, harshness) and increased longevity over stock rubber bushings.
Bushings are produced in one of three durometers – Yellow (70A, approximately 25% stiffer than stock), Purple (80A, approximately 30% stiffer than stock), and Black (95A, approximately 80% stiffer than stock). Unlike other brands using only one urethane grade for all applications, Powerflex design engineers choose the correct hardness to allow for the specific movement or rigidity required for each location while minimizing unwanted NVH.
Powerflex urethane hardness is standardized per fitment and location. This takes out the guess work, so when you choose Street, you know our design engineers have selected the optimal polyurethane hardness for your specific application. Select parts are also available in an optional stiffer urethane (Black Series) for track and autocross performance where NVH is less important.
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
4.4 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Best I have tried
Source naturals is the best brand of melatonin that I have tried. I have been using it for years to help me stay asleep. I typically fall asleep fine, but where I run into issues is staying asleep or if I wake after a few hours of sleeping. The melatonin helps me fall back asleep faster and I feel refreshed the next morning.
You will probably want to experiment with the dosage, I have found that the 5mg works best for me. And I like the peppermint flavor in lieu of the orange simply because I have usually just brushed my teeth before slipping this under my tongue.
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Reviewed in the United States on June 15, 2018
★★★★★ 5
My Most Reliable Sleep Aid
I've had issues falling asleep and staying asleep ever since I was a teenager, but for well over a decade, I've been able to count on melatonin to help me sleep better. This under-the-tongue version of it seems to work the best, being absorbed into the bloodstream. It helps get me to sleep relatively quickly while also helping significantly with keeping me asleep. I use one of these every night. I'd strongly recommend using these as well before turning to prescription sleep aids. They can also work well in conjunction with prescription sleep medicine if necessary.
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Reviewed in the United States on August 31, 2019
★★★★★ 4
This is a good product but the peppermint flavor is too overpowering
The sublingual Melatonin is ideal for traveling because it works almost instantly, so you can get to sleep faster than usual. I normally buy the orange flavored version and ended up with this peppermint one by accident (not paying attention), I found the taste much too strong and it seemed to create a burning sensation where I placed it under my tongue. I will stick to the orange version in the future.
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Reviewed in the United States on February 24, 2013
★★★★★ 5
I particularly love the sub-lingual
I've been using melatoning for yeeeears. I particularly love the sub-lingual. I use the 5 mgs and take two every night just as I go to bed and within minutes I'm asleep. I wake up rested and refreshed.
Note: You have to be very patient with the dosage. Start with one..then add 1/2 a pill or another one. It works! The key is getting the exact dosage for you because we are not all the same. For example: I always take two. Very rarely I need one more, how do I know? Well, if I can't get to sleep within a reasonable amount of time I will take a third. Now, if I do this a couple of days in a row I start to wake up a little tired in the morning. Now I know I have too much melatonin in me so I may not take it the following night at all until my own body tells me it needs it.
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Reviewed in the United States on July 8, 2014
★★★★★ 5
Works fast
I love this sublingual tablet, it helps me fall asleep fast. I've been using it for many years when I'm having a hard time falling asleep and doesn't give me a hang over.
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Reviewed in the United States on March 3, 2026