MFACTORY HONDA CIVIC B-SERIES B16A2 Y21 S4C FINAL DRIVE GEARS - 5.167 exterior Front Spring Rate (Tender /

Front Spring Rate (Tender / Main): 123 lb-in / 260 lb-in

enhanced on board datalogging

Made for Skunk2 74mm K Pro Series Throttle Body Reduces Heat Soak Reduces Heat Transfer From Intake Manifold

Perfect for your vehicle and lifestyle

MFACTORY HONDA CIVIC B-SERIES B16A2 Y21 S4C FINAL DRIVE GEARS - 5.167 exterior Front Spring Rate (Tender /Take your performance to the next level with the MFactory PRO Series Gears. Recognizing the demand for transmission components that can withstand the extreme shock loads produced during Drag Racing, MFactory Competition Products are proud to offer our range of top tier competition level gears. Final drive gears are cut from high quality fully carburized forged nickel chromoly steel while also benefitting from a proprietary heat treatment process. As a