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Supertech BG-QR25DE Block Guard Fits Nissan QR2DE
 
       
About Product
​Supertech Block Guard for the Nissan QR25DE is designed to strengthen the engine block for high hp levels.  It provides support to highly stressed cylinder walls but still allow maximum water cooling.  This helps stop damaging cylinder hot spots. 

Made from high strength/ low weight 6061 aluminum alloy, and CNC machined for easy installation.

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