SKU: 1165068916

Koyo Radiator 12-15 Civic Si

Sale price$194.85 Regular price$216.50
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Koyo Radiator 12-15 Civic SiNote: 2. 4L (Coupe and Sedan) Trans: MT All radiators are fully polished to a mirror finish. Each feature the following: Provides 20% to 30% more cooling than standard radiators Handles high revving, high performance motors Perfect for Turbocharged, Supercharged & Nitrous Oxide equipped engines Made from aircraft quality aluminum and Heli arc welded, cores are NOCOLOK brazed (no epoxy) Koyo is on the cutting edge of technology and design with Japan's

Note: 2.4L (Coupe and Sedan)
Trans: MT

All radiators are fully polished to a mirror finish. Each feature the following:
- Provides 20% to 30% more cooling than standard radiators
- Handles high revving, high performance motors
- Perfect for Turbocharged, Supercharged & Nitrous Oxide equipped engines
- Made from aircraft quality aluminum and Heli-arc welded, cores are NOCOLOK-brazed (no epoxy)
- Koyo is on the cutting edge of technology and design with Japan's largest automobile manufacture
- Custom built OEM fit - All radiator cores and tanks are specifically designed and built for each application. No universal fit parts are used. This ensures proper fit, just like your original equipment! Koyo builds radiators to fit today's most popular import performance cars.
- Designed for five speed models only.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 1165068916

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4.4 ★★★★★
Based on 6 reviews
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Product Reviews
K
K Alex
Grantham, US
★★★★★ 5
Perfect!!!
This is exactly what I needed. Fits perfectly for my 2018 Honda Accord as well as being very easy to install. This is coming from someone who has no idea about doing anything on my car. Provides the best function, just as it would coming from a dealer or other auto shop. The quality is great as well, and this is exceptional value for the money. If you are looking to save money and not get bombarded with the filter replacement question when getting an oil change then this is the one for you.
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Reviewed in the United States on August 4, 2025
T
T. Isaacson
Houston, US
★★★★★ 5
Fit is good.
Filters fit and look essentially the same as the filters I’ve purchased and the official types from the dealer. I live in an area where wildfires occur almost every year,  so it’s good to have an extra set of filters to change them out after a run of smoky days. 
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Reviewed in the United States on July 1, 2025
C
Charles
Birmingham, US
★★★★★ 5
Priced affordable, easy installation, fits snug and perfect and seems durable!!
This cabin air filter and engine air filter seems to be made of high quality materials, installation was a breeze, fitment seems to be perfectly snug affordably priced for a cabin air filter and an engine air filter combined, as for functionality, Only time will tell on its durability.
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Reviewed in the United States on July 2, 2025
W
Verified Purchase
William Mateuszczyk Jr.
Houston, US
★★★★★ 5
Better then OEM
Size: (Pack of 1)
I’m writing this for my 2022 Honda Accord Sport 2.0T.. Honda wanted to charge me $85 to replace the air filter, immediately after I bought this filter for $17. Just changed it 5 minutes ago and let me tell you, it was identical to the oem Honda filter. Fit perfectly, quality was same if not better then the original one. Functions amazing and air quality is great. Car definitely felt happy after replacing it. 10/10
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Reviewed in the United States on July 20, 2025
N
Verified Purchase
Nick C
Charlottesville, US
★★★★★ 5
Direct replacement
Size: (Pack of 1)
Direct replacement on my 2020 Accord 2.0T. Fit just like factory.
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Reviewed in the United States on February 23, 2026

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