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Driveshaft Shop left axle for 2012–2015 Honda Civic Si is an X4 design rated for 700 HP and listed as model RA4030X4. This direct-fit replacement axle is specified for Civic Si applications in that model range and is intended where higher load capacity is required. The description identifies the left-side axle, the model, and the 700 HP torque capacity for use in high-output builds.
Driveshaft Shop 12-15 Honda Civic Si 700HP X4 Axle LEFT RA4030X4
