Carrillo Mazda MZR 2.3 Pro-SA 3/8 WMC Bolt Connecting Rods

If you're building a high-performance MZR 2.3 engine for your 2004-2009 Mazda 3, the connecting rods are a critical component. These Carrillo Pro-SA connecting rods are designed to handle the increased stress and power of a modified engine, ensuring reliability when you push your car hard. They are a well-built upgrade over the stock rods, which can be a weak point in performance builds.

Carrillo is known for making strong internal engine components, and these Pro-SA rods are no exception. They feature a 3/8 inch WMC bolt, which is a robust fastener choice for connecting rod applications. The Pro-SA series is a popular option for racers and serious builders because they offer a good balance of strength and weight, which is important for engine response. The material and design are intended to withstand higher RPMs and increased cylinder pressures that come with performance tuning.

This set includes four connecting rods, enough for one MZR 2.3L 4-cylinder engine. When installing these, it's important to follow the manufacturer's torque specifications precisely for the rod bolts and bearings. Proper assembly is key to ensuring these rods perform as intended and last for the life of your build. Consider consulting your engine builder or a trusted mechanic to ensure correct installation procedures are followed.