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Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle
Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle
Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle
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Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle

Marsoni M251S
Sale price$617.92
Pay 4 payments of $154.48 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb BottleNitrous Express. 4150 Assassin Plate
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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 803 reviews
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Product Reviews
H
Verified Purchase
HB
Omaha, US
★★★★★ 5
Good quality, but likely holds water.
Good quality and was easy to install on base with two bolt lengths provided. I modifed by drilling a small hole through the base of the pole mount so that water can drain out. I have previously ended up with a rotten wooden umbrella pole because the pole mount held water!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
D
Verified Purchase
Don B.
Charlottesville, US
★★★★★ 5
This is the one to buy
It was the perfect replacement heavy duty constructed and able to take different size umbrellas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
R
Verified Purchase
Robi
Grantham, US
★★★★★ 4
Good fit, but loosens easily
Fit perfect but the wind blowing makes the whole umbrella move the part enough to loosen it so continually having to tighten, which is a pain since you have to do so from the bottom of the base.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2025
E
Verified Purchase
Ed
Omaha, US
★★★★★ 5
works for me!
Seems much higher quality than the original, install is simple, and I like that there are 2 screws for hold the umbrella tight and straight
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
J
Verified Purchase
JeepGuy
Port Orchard, US
★★★★★ 5
Great replacement mount.
Great replacement that comes with 2 different inserts. Easy to replace our rusted out one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026

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