Even when coolant begins to heat up, pressure begins to build inside the radiator.  BLOX Racing’s high pressure radiator caps ensure that this pressure is properly relieved so excess heat is spent and fluids flow into the overflow tank.

Standard caps are designed to open at 1.1 bar, but BLOX Racing’s 1.3 bar caps are able to withstand the increases in heat and pressure and prevent the radiator from overheating. 

BLOX Racing radiator caps are rated 1.3 bar and greatly increase your radiator’s cooling efficiency and performance. 

* Some aftermarket radiators do not use a factory cap. For example, Koyo uses Type A on most their radiators regardless of application. Please check yours before ordering. 

Type-A Vehicle Applications

• Fits most aftermarket radiators
• Fits Blox Racing Radiators
• 1988-1991 Honda Civic
• 1988-1991 Honda CRX
• 1992-2001 Honda Prelude
• 2016+ Honda Civic 1.5T
• 2017+ Honda Civic Type-R
• 1990-1993 Acura Integra
• 2003-2007 Mitsubishi Evolution VIII, IX
• 2008+ Mitsubishi Evolution X
• 2002+ Subaru WRX, STi 

Type-B Vehicle Applications

• Fits most factory and some aftermarket radiators
• Fits K-Tuned filler necks
• 2007-2008 Honda Fit
• 1992-1995 Honda Civic (all)
• 1992-1997 Honda Del Sol (all)
• 1996-2000 Honda Civic (all)
• 2000-2009 Honda S2000 (all)
• 2002-2005 Honda Civic Si
• 2006-2011 Honda Civic (all)
• 2012-2015 Honda Civic
• 2003-2008 Honda Element
• 1990 -1997 Honda Accord
• 1994-2001 Acura Integra (all)
• 2002-2006 Acura RSX (all)
• 2004-2008 Acura TSX
• 2013+ Toyota 86
• 2013+ Subaru BRZ