K&N 02-07 WRX/STi 57i Performance Intake Kit

K&N 02-07 WRX/STi 57i Performance Intake Kit

Marsoni

M251S

$131.50

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

K&N 02-07 WRX/STi 57i Performance Intake KitK&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open air air filters provides even more airflow at lower

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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

I used this as a junction point on a 1 gauge wire. I added an 8 gauge wire to one side, and the cover would not seat. I had to bend and maneuver the ring terminals to make the cover catch. For the price of the items, if used without any secondary wires attached and interior use only, this is an unbeatable deal.

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Reviewed in the United States on January 30, 2026

Verified Purchase

Joe M. Blair

West Palm Beach, US

★★★★★ 5

Great Quality

Size: 300A

Exactly what I needed. Good quality and worked perfectly.

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Reviewed in the United States on May 21, 2025

Verified Purchase

Junior

Port Orchard, US

★★★★★ 5

Great

Size: 300A, Size: 300A

Easy to install works great and really good quality and clean looking

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Reviewed in the United States on February 24, 2025

Verified Purchase

Bigzbe

San Leandro, US

★★★★★ 5

Nice!

Size: 300A

I was not expecting these to be this nice. You just can't beat the value. They look great and feel like they will hold up a long time. I definitely recommend!

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Reviewed in the United States on July 17, 2024

Verified Purchase

Meeikal

Lowell, US

★★★★★ 5

Solid choice for fuse holder

Size: 300A Fuse Holder

It’s awesome, solid connections for running 0 gauge wire. No issues after using for months! Might upgrade to using 0 gauge wire ferrules to use with this but for now everything is working well.

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Reviewed in the United States on January 14, 2026