AEM 2009+ Nissan 370Z 3.7L Cold Air Intake

AEM 2009+ Nissan 370Z 3.7L Cold Air Intake

Marsoni

M251S

$185.00

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

AEM 2009+ Nissan 370Z 3.7L Cold Air IntakeThe 21 821DS Performance Cold Air Intake System produces horsepower and torque gains by replacing the restrictive air filter and air intake housing. This air intake system was designed, tuned and dyno tested to fit specific Nissan 370Z models. This system replaces both the left and right side intakes. The AEM Dryflow synthetic washable air filter does not require oiling and can be used up to 100,000 miles before servicing is needed (depending on

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I used this to turn on with key on power in my truck. Power then goes through this and turns on my key on fuse panel. That way I can run a much larger cable from the battery to the fuse panel instead of pulling power through the ignition switch, where power output is limited. So far it doesn't get hot, though I am not running anything close to 500 amps through it. More like 75 amps max and even then it's only sometimes. No problems so far.

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Reviewed in the United States on July 28, 2024

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Astrid Falcon

Lowell, US

★★★★★ 5

Heavy duty and has lasted three years so far

I have had this relay installed in the engine bay of my Lexus RX 300, functioning to link the front battery to the additional battery in the trunk whenever the ignition is on. The relay has worked reliably for about three years now with no complaints besides one minor comment, be careful when threading down the nut on the Low voltage side. It is prone to stripping

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Reviewed in the United States on March 24, 2025

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Dr.Ortiz Ayala

Los Angeles, US

★★★★★ 5

It delivers as advertised.

Works as advertised, and is easy to install.

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Reviewed in the United States on August 18, 2025

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JOHN A.

Cuba, US

★★★★★ 5

Heavy Duty!!

Performed extremely well. No buzzzing or poor connection. Extremely well built and has been working issue free for over 6 months! Instalation can be a bit difficult due to size and weight. Not really a problem.

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Reviewed in the United States on November 25, 2024

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shawn

Battle Creek, US

★★★★★ 4

Seems to be ok for the money

We use it to power a 2000w inverter for the refrigerator and microwave on our boat where sometimes it will stay on continuously throughout the day and it hasn't let us down. As others have said, the terminals are awful close together but for the money, it's worth it.

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Reviewed in the United States on January 21, 2025