


Nitrous Express Holley High Ram Plenum Nitrous Plate Conversion
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Nitrous Express Holley High Ram Plenum Nitrous Plate ConversionNitrous 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. The plate is made from billet aluminum with passages machined directly into the plate so
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Your Nitrous Express Holley High Ram Plenum Nitrous Plate Conversion orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
- To process your return/exchange, please contact us at [email protected]
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4.8 ★★★★★
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Product Reviews
★★★★★ 4
Only received one of the two filters
I had to return because I only received the cabin filter, not the engine filter. Delivery was delayed and maybe this caused the misplacing of the other part. Not sure. I am placing another order, hoping that it will be complete this time. It is good qualiflty, though.
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Reviewed in the United States on December 20, 2025
★★★★★ 5
Buy these, save some $$
Size: size for ASCENT/CROSSTREK/IMPREZA/LEGACY/OUTBACK
Save yourself about $100 by replacing these yourself, we have a Subaru Impreza. Easy to install for a few minutes time spent on YouTube. The dealers make a bundle on this sort of thing.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
It’s the right part tor Acura integra
Size: 7.32" x 7.48" x 2.28"
Perfect fit easy to replace good quality !
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Reviewed in the United States on May 9, 2026
★★★★★ 5
perfect fit for 2025 Honda CRV Hybrid 2.0 engine
Size: 8.26" x 5.63" x 2.24"
Appears to be a well made air filter
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Good filter
Size: 14.7" x 7.99" x 1.26"
Fits well.
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Reviewed in the United States on May 16, 2026