Nitrous Express 8 Cyl Dry Direct Port Dual Stage 4 Solenoids Nitrous Kit (200-600HP) w/15lb Bottle

Nitrous Express 8 Cyl Dry Direct Port Dual Stage 4 Solenoids Nitrous Kit (200-600HP) w/15lb Bottle

Marsoni

M251S

$1397.43

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

Nitrous Express 8 Cyl Dry Direct Port Dual Stage 4 Solenoids Nitrous Kit (200-600HP) w/15lb BottleThis dual stage NX Dry Direct Port System provides nitrous directly into each cylinder through two sets of high flow NX Dry Nozzles. This system is designed to be used with an engine management system that can add nitrous enrichment through the engine's fuel system. A jet card with lbs. hr. flow data for each horsepower setting is provided to aid in tuning your engine management systems nitrous enrichment settings. Includes four billet aluminum and

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Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.

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Reviewed in the United States on May 17, 2026

Verified Purchase

Bon43

New York, US

★★★★★ 5

Awesome

Easy to install. Fit appropriately. Value for the money for sure.

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Reviewed in the United States on September 26, 2025