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Nitrous Express Holley High Ram Plenum Nitrous Plate Kit w/5lb Bottle

Marsoni M251S
Sale price$885.50
Pay 4 payments of $221.38 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express Holley High Ram Plenum Nitrous Plate Kit w/5lb BottleNitrous Express. Holley High Ram Plen These high tech nitrous plates bolt between the upper and lower intake manifold on Holley Hi Ram manifolds for a quick and clean install. Nitrous and fuel are injected into each cylinder from the side of the runner providing direct port like distribution without having a flow restricting nozzle or spray bar in the runner. Systems come standard as a single stage with jetting for 50 to 500WHP. The plate is made from
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  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 2201 reviews
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Robert
Carnegie, US
★★★★★ 5
Fit my Subaru Forester perfectly!
This fit my 2024 Subaru Forester perfectly. The filters exhibited a high quality construction and was packaged well. Installation was easy and saved me a lot of $ vs. having my dealer install an OEM filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
J
Verified Purchase
Jeremiah
Battle Creek, US
★★★★★ 5
Good Fit
I don’t expect this filter to last as long as the original filter but that’s okay because it is about half the cost. It looks well made. I didn’t see any flaws. I chose this filter because it had some of the fewest complaints regarding the fit and it worked well for my ‘23 Subaru Forester. I may go back to an OEM filter next time but it’s nice to know that this one will work for me.
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Reviewed in the United States on April 30, 2026
J
Verified Purchase
John Appleseed
Charlottesville, US
★★★★★ 5
Fits as advertised
Good item
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Reviewed in the United States on May 11, 2026
J
Verified Purchase
Just Joe
Draper, US
★★★★★ 4
Don't spend $50 at the shop, do it yourself.
Filter fits as it should. Good price for what feels line a quality part.
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Reviewed in the United States on January 4, 2026
S
Verified Purchase
Shane605
Alexandria, US
★★★★★ 5
DIY
Good price and fit my 2018 subaru crosstrek. Saved money switching it out myself. Super easy to do it yourself
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Reviewed in the United States on February 15, 2026

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