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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
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Description
Skunk2 Alpha Series 06-11 Honda Civic SI Radiator (Dual Core)Skunk2's all aluminum, full size Alpha Series Radiator for the '06 '11 Civic Si is a direct fit upgrade designed to dramatically increase both cooling efficiency and engine performance. Alpha Series Radiators are manufactured from lightweight and durable aluminum, feature 100 percent brazed cores, and include polished end tanks with Skunk2's signature Alpha logo embossed along each side. Each Alpha Series Radiator features a dual core design, high
Skunk2's all-aluminum, full-size Alpha Series Radiator for the '06-'11 Civic Si is a direct-fit upgrade designed to dramatically increase both cooling efficiency and engine performance. Alpha Series Radiators are manufactured from lightweight and durable aluminum, feature 100-percent brazed cores, and include polished end tanks with Skunk2's signature Alpha logo embossed along each side. Each Alpha Series Radiator features a dual-core design, high-efficiency fins for maximum cooling capabilities. Each Alpha Series Radiator also includes provisions for the OEM cooling fan and OEM-compatible, 1.25- in. inlets and outlets. Skunk2's commitment to producing high-quality components means that each Alpha Series Radiator meets or exceeds original equipment manufacturer standards, that each radiator may be installed without modification to the vehicle, and is compatible with OEM hoses, cooling fans, and shrouds. (Note: Some engine swap applications may require custom radiator hoses and/or cooling fans.) Skunk2's Alpha Series Radiators are the perfect addition to any high-performance vehicle and are designed for the street, the track, or even OEM replacement purposes. Alpha Series Radiators are built to withstand harsh elements as well as against years of under-hood heat cycling. Each Alpha Series Radiator adheres to strict quality control standards and careful packaging, resulting in tubes and fins capable of optimal flow and efficient heat transfer.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2011 | Honda | Civic | Si |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Works and fits my vehicle.
Size: 5424WS, Style: Workshop
The price is reasonable and was delivered on time. It’s a filter so there’s not much you can grade this on unless you do scientific analysis. Be certain to buy the filter that fits your car.
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Good filter
Size: 5424WS, Style: Workshop
It seems to be working. It’s not something that will make a tangible difference, but it fit my car and was easy to install.
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Reviewed in the United States on August 12, 2024
★★★★★ 5
Top quality at great price
Size: 5424WS, Style: Workshop
These are great filters for the money. The car dealer wanted 80 dollars to replace it. This can be done by anyone and buying it on here is even more savings. Do not fall for it at the dealer. Save your hard earned money!
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Excellent Engine Air Filter — Keeps Your Engine Breathing Clean!
Size: 5424WS, Style: Workshop
It’s a high‑quality replacement that does exactly what you want from an engine air filter — it helps protect your engine and keeps performance strong.
Right away you can tell this is a well‑made part. The filter media has lots of pleats and high‑velocity cellulose material that’s designed to trap dirt and contaminants before they get into your engine, which helps reduce wear and tear on vital components. It offers up to ~98% filtration efficiency, so you know the incoming air is much cleaner and better for performance and fuel efficiency.
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Reviewed in the United States on February 26, 2026
★★★★★ 5
Great product
Size: 5424WS, Style: Workshop
Perfect for DIY filter change.
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Reviewed in the United States on May 30, 2026