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Honda Civic SI Racing Thermostat, 2006-2013

Honda Civic SI Racing Thermostat, 2006-2013
Honda Civic SI Racing Thermostat, 2006-2013

Regular Price: $83.20

Sale Price $66.95

Installation Difficulty

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  • Fits the 2006–2013 Honda Civic SI
  • Activates at lower temperature so coolant flows through system earlier
  • Allows for cooler engine temperatures
  • Mishimoto Lifetime Warranty

The Mishimoto racing thermostat for the 2006-2011 Honda Civic Si will promote greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantly lower high engine temperature produced by modified and upgraded turbo applications. Once the engine is fully warmed up the Mishimoto racing thermostat will open up at a lower temperature (68°C) than standard thermostats (82°C), also allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.



OEM Activation Temp C 78°C

OEM Activation Temp F 172.4°F

Purchase Includes (1) Mishimoto Thermostat
Mishimoto Lifetime Warranty

Install Torque Specs

Engine Codes K20z3

Chassis Codes FA1

Fits 2007-2008 Acura RDX 2.3L
2004-2008 Acura TSX 2.4L
2006-2013 Honda Civic Si 2.0L/2.4L
2007-2013 Honda CR-V 2.4L

Mishimoto Activation Temp (Fahrenheit) 154.4°F

Mishimoto Activation Temp (Celsius) 68°C


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