★★★★★ 5
Don’t over pay for auto filters
Great filter for reasonable price. Great fit in vehicle
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Reviewed in the United States on February 12, 2026
Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb BottleAssassinate the competition with the Assassin plate system. The Assassin is the most technically advanced single stage plate ever designed. The CNC machined design integrates the nitrous and fuel discharge ports into the outer perimeter. The Assassin offers a unique perimeter spray pattern that assures perfect nitrous fuel distribution. Which in turn solves the problems commonly found on single plane manifolds, particularly small and big block Fords.
Quick Dispatch:
Your Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle 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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You'll receive a tracking link by email once your Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle ships.
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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]
- Please click here for more details>>> Return & Exchange Policy
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4.7 ★★★★★
Based on 2255 reviews
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Product Reviews
★★★★★ 5
Great price
Great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025
★★★★★ 5
PERFECT FIT, EASY AF, HAPPY CUSTOMER
perfect fit for my 2022 civic! took 5 min! (not an exaggeration) soooo many youtube videos but alll you gotta do is -
1) locate engine air filter holder
2) undo fasteners on the sides
3) lift black part up
4) pull out old filter
5) put in new filter,
6) redo fasteners
DONE!
dealership wanted to charge me $85 for this!!!!! forget that , do it yourself! it’s easy for girls too!! don’t be intimated :)
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Reviewed in the United States on October 29, 2025
★★★★★ 5
Great product!
High quality; great product; highly recommended!
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Reviewed in the United States on July 27, 2025
★★★★★ 5
Good product too!!!
Style: CA7440
Great fit!! Good price.
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Reviewed in the United States on April 3, 2026
