HKS RS US CIVIC Si

Marsoni

M251S

$253.00

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

HKS RS US CIVIC SiSKU: 70020 KH101 UPC: 4957266275542 HKS Racing Suction Intake Kit 2017 2021 Honda Civic Si The HKS Racing Suction (RS) intake kit replaces the factory airbox on 2017 2021 Honda Civic Si models with a high flow dry filter and large diameter aluminum pipe. This setup draws in cooler, denser air to support the 1. 5L turbo engine for quicker throttle response and measurable power gains across the RPM range. Engineered for direct bolt on fitment, it

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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.
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my 6’4” husband wore this to our wedding. it looked amazing on him 💜 everything fit pretty good except for the jacket part; that was a little big. it may fit someone who weighs a little more but my husband weighs about 165lbs. we had to tailor it a little bit. other than that, very beautiful suit.

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Reviewed in the United States on December 19, 2025

Verified Purchase

Mushana T Lee

Fort Morgan, US

★★★★★ 5

Runs a little big

Color: Gold, Size: X-Small, Color: Gold, Size: X-Small

I bought the suit for the junior prom in a small. It ran a little big so I had to send it back and get the extra small. X-Small fit perfect just had to bring the pants up a little

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Reviewed in the United States on May 22, 2026

Verified Purchase

luv2shop

Draper, US

★★★★★ 5

You Stand Out

Great quality, vibrant color, and reasonable price. I really like the look of this suit. I bought it for a friend, and he really loved it as well. This suit really makes you stand out in a crowd, and would be good for prom or another special event.

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Reviewed in the United States on September 19, 2025

Verified Purchase

Sugg843

Alexandria, US

★★★★★ 5

Prom Time🙌🙌

Color: Gold, Size: Medium, Color: Gold, Size: Medium

I purchased this suit for my son’s prom, and it exceeded our expectations. The fit was true to size, the material feels good quality, and it looks very sharp in person. He was comfortable wearing it all day, and it gave him a polished, confident look for his special day. I would definitely recommend this suit to anyone looking for a stylish and well-fitting option!

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Reviewed in the United States on February 23, 2026