







❄️ Stay cool, drive hotter: The ultimate Civic Si radiator upgrade!
The Mishimoto MMRAD-CIV-06SI is a high-performance aluminum radiator designed specifically for 2006-2011 Honda Civic Si models with K-series engines. Featuring a 1.57-inch thick two-row brazed aluminum core and all-aluminum construction with a magnetic drain plug, it delivers superior cooling efficiency and durability. Its precise fit and lifetime warranty make it the go-to upgrade for enthusiasts seeking reliable engine temperature regulation on both street and track.











| Manufacturer | Mishimoto |
| Brand | Mishimoto |
| Item Weight | 5 pounds |
| Product Dimensions | 30.5 x 7 x 21.5 inches |
| Item model number | MMRAD-CIV-06SI |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | MMRADCIV06SI |
| OEM Part Number | MMRADCIV06SI |
S**
Very nice
Nice addition to my car keeps cool.
M**.
Good quality!
Once my mechanic replaced the radiator, and I drove the car, I felt more power for sure. The quality was very good, and I won't have to worry about my cars cooling system. Worth the money!
S**N
Compatible with 2009-2011 civic ex.
Compatible with 2009-2011civic excivic ex_lcivic dxcivic sicivic MXThis radiator is very excellent .my car civic 4 Door EX-L (NAVIGATION)It is really convenient .
E**3
not only it looks good under the hood but it also keeps my car ...
vroom vroom....not only it looks good under the hood but it also keeps my car running cooler than ever now that it is under boost
J**U
love it
i needed a new radiator and the fact that this full aluminum radiator only costs 20 dollars more than the cheap plastic oem one is a plus.
J**Y
Five Stars
Perfect fit! And easy install no complaints at all
A**R
Two Stars
Radiator was not a direct bolt on as described. The fan could not be bolted on.
B**O
Five Stars
Great fitment
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