Weapon R 97-2001 Infinity Q45 4.1L Secret Weapon Intake

Weapon R 97-2001 Infinity Q45 4.1L Secret Weapon Intake

Marsoni

M251S

$211.81

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

Weapon R 97-2001 Infinity Q45 4.1L Secret Weapon IntakeSKU: 304 146 101 Weapon R Secret Weapon Intake System for 1997 2001 Infiniti Q45 4. 1L The Weapon R Secret Weapon Intake System is engineered to deliver more air to your engine than any standard intake option. This system stands out by using patented dual velocity airflow technology, pulling in three times the air volume of typical setups for noticeable gains in horsepower, torque, and throttle response. Dyno tests from Tuner Performance Reports

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Great fit, and lot more more robust in build than the OEM filter it replaces. I've replaced the factory cabin air filters in at least 3 vehicles with these, when the time came to replace. Side note: This one went into a 2020 Lincoln Aviator and --consistent with my experience with previous Lincoln models -- the retaining tabs on the filter housing door snapped off when I was trying to remove it. Nothing to do with the K&N filter, but I just don't understand why Lincoln can't design a better housing door mechanism.

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Reviewed in the United States on September 16, 2025

Verified Purchase

Zoloft

Natrona Heights, US

★★★★★ 5

Great fit, great replacement for standard filter.

Size: 1 Count (Pack of 1)

Very tight fit, but fit it does. I put this in my 2.5L Ford Escape Hybrid 2020. Fits tight, but well, so no wiggling.

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Reviewed in the United States on September 8, 2025