★★★★★ 1
Not good
My son didn’t like the taste
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
Nitrous Express 4500 RNC Conventional Nitrous Plate Kit w/.375in Solenoid w/15lb Bottle
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Nitrous Express 4500 RNC Conventional Nitrous Plate Kit w/.375in Solenoid w/15lb BottleThe conventional RNC (Restricted Nitrous Class) systems are the first choice for professional racers that are limited by jet size. These systems feature a CNC billet nitrous plate with enlarged nitrous passages, a . 375 in. orifice Lightning nitrous solenoid, 8an feed line and a . 500 orifice Lightning 500 bottle valve. The combination of these components results in a very dense liquid nitrous charge which allows the maximum amount of nitrous flow
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 138 reviews
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Product Reviews
★★★★★ 2
Wouldn’t buy again
We got these to help our 6-year-old fall asleep. We were looking for something that was yummy and worked for sleep; these didn’t do either. My son didn’t like the taste and when he did finally take it, he didn’t fall asleep. We never took it again.
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Reviewed in the United States on July 11, 2025
★★★★★ 5
My children occasionally need a really good nights rest.
Sometimes my kids need a good night's rest and this is my go-to product for that! The raspberry flavor makes it easy for them to take as well.
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Reviewed in the United States on August 6, 2024
★★★★★ 5
First time
Works like a champ
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Happily Surprised
These actually work as described! Very pleased
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Reviewed in the United States on March 29, 2026
