Nitrous Express Direct Port Water Injection 4 Cyl Stage 1

Nitrous Express Direct Port Water Injection 4 Cyl Stage 1

Marsoni

M251S

$448.00

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

Nitrous Express Direct Port Water Injection 4 Cyl Stage 1NX direct port water methanol systems inject the water methanol mixture directly into each intake runner providing excellent distribution to each cylinder. These systems include a high pressure electric pump, high pressure push lock hose, filtered nozzles, nickel plated fittings and a composite reservoir. Stage one systems include a wide open throttle activation switch while stage 2 and stage 3 systems include digital progressive controllers that

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Changed this filter in a matter of 3 -4 minutes. The fit and feel seems identical to the Honda OEM filter---feels just as heavy and fit exactly. For $10 it's a bargain. I drove about 20 miles after installing, also with no problems. 4 stars because I want to give a long term report... I will report a few months from now to advise how it held up under North East conditions.

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Reviewed in the United States on September 11, 2023

Verified Purchase

craigerino

Natrona Heights, US

★★★★★ 5

3rd purchase very good!

Great filter. Easy install with a Phillips screwdriver. 5 min and an amateur can do it. This is my 3rd purchase and will save so much money vs dealer

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Reviewed in the United States on February 14, 2026

Verified Purchase

Chindee

Draper, US

★★★★★ 5

Great price and perfect fit.

Fits perfectly in my 2017 Honda Cr-v.

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Reviewed in the United States on January 9, 2026

Verified Purchase

marina