Nitrous Express Dual 4150/Alcohol Nitrous Kit (100-500HP) w/5lb Bottle

Nitrous Express Dual 4150/Alcohol Nitrous Kit (100-500HP) w/5lb Bottle

Marsoni

M251S

$629.17

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

Nitrous Express Dual 4150/Alcohol Nitrous Kit (100-500HP) w/5lb BottleNitrous Express. DUAL 4150 ALCOHOL (1 The conventional Pro Power is the perfect mid level nitrous system for the budget minded sportsman racer. These systems feature the most advanced technology using the conventional spraybarless design. The Phase 3 series plates are the ? Next Generation in nitrous performance and reliability. This new innovation in nitrous plate technology provides superior distribution and outstanding atomization. With no spray

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This kit had every single piece needed for my Alpha water pump - and many I didn't need. I guess it fits basically all the different versions out there. I remember when the single kits cost more and had much less. This is a good high-quality alternative. Stock up on them now - you'll need one eventually.

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Reviewed in the United States on July 28, 2025

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Austin Williams

Pawtucket, US

★★★★★ 5

Great bang for your buck!

Swapped out my old impeller and this helped fix my overheating issue. Super high quality, fit like a glove. If you know what you’re doing it’ll take you an hour tops. Super solid for the price! Fit into my 1990 alpha one gen 1 outdrive on my 4.3 Mercruiser.

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Reviewed in the United States on June 22, 2025

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Jesse Simpson

Natrona Heights, US

★★★★★ 4

Decent Kit

It's a pretty decent kit. Comes with all the lower unit options whether yours needs that particular part or not.

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Reviewed in the United States on June 22, 2025

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Eli