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Nitrous Express All GM EFI Single Nozzle Nitrous Kit w/(35-150HP) 5lb Bottle

Marsoni M251S
Sale price$452.50
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Nitrous Express All GM EFI Single Nozzle Nitrous Kit w/(35-150HP) 5lb BottleNitrous Express. ALL GM EFI SINGLE NO If you want the best this is it. The NX Stage 1 EFI nitrous system is the top of the line EFI power booster on the market. From the highest flowing solenoids to our patented Shark nozzle this system screams nothing but quality. NX has a system for every EFI car in the world. Available in horsepower levels from 35 50 75 for most 4 and 6 cylinder cars and up to 150 for 8 10 and 12 cylinder engines. This NX EFI Stage
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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 973 reviews
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K
Verified Purchase
Kory
Port Orchard, US
★★★★★ 5
Good stuff, fair price.
Configuration: 4-Stroke, Size: 1 GA
Great full synthetic marine oil at a very fair price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
D
Verified Purchase
Doug
Chelsea, US
★★★★★ 5
Top notch.
Configuration: 2-Stroke, Size: 1 GA, Case of 3
It’s Valvoline so it’s quality. Very little smoke and a smooth running outboard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
T
Verified Purchase
tb23498
West Palm Beach, US
★★★★★ 5
works perfect
Configuration: 4-Stroke, Size: 1 GA
i bought to maintain mowers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
J
Verified Purchase
john casari
Waukegan, US
★★★★★ 5
good value
Configuration: 4-Stroke, Size: 1 GA
good value and marine rating on the lable
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Reviewed in the United States on April 26, 2026
C
Verified Purchase
Cody Mills
Birmingham, US
★★★★★ 5
Will buy again!
Configuration: 4-Stroke, Size: 1 GA, Configuration: 4-Stroke, Size: 1 GA
This is my second time using this oil to service my 2022 Mercury 90 outboard. Excellent oil! Engine runs extremely smooth. The jug was very easy to pour from. No smoke from the engine.
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Reviewed in the United States on March 18, 2026

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