Rear Engine Mount

The Hasport FG4RR rear engine mount is engineered for the 2012-2015 Honda Civic Si (Coupe/Sedan) to significantly reduce engine movement, which can cause issues like wheel hop, lazy shift engagement, and drivetrain slop. By controlling engine rotation, this mount helps maintain consistent axle angles, exhaust clearance, and shifter linkage geometry, leading to a more planted, responsive, and predictable driving experience. Constructed from lightweight, CNC-machined 6061-T6 billet aluminum, the FG4RR mount is built for durability and consistent performance under load. It is available in four urethane bushing stiffness options: U62A (Street) for daily driving with minimal NVH increase, U70A (Track) for spirited driving and occasional track days, U88A (Race) for aggressive street use and heavy track days with noticeable vibration, and U94A (Extreme) for maximum drivetrain control in dedicated track or race applications with significant NVH. This rear engine mount bolts directly into the stock location using factory hardware points, requiring basic hand tools for installation. It is specifically designed for the FG4 Si chassis and will not fit non-Si models. The FG4RR is often the first drivetrain upgrade for 9th gen Civic Si owners, providing a substantial improvement in shift feel, launches, and overall vehicle responsiveness.