This Factory Pro accessory is a graphite chassis stiffener built for Tamiya M08 applications and marked for 239 use; it changes chassis flex behaviour without modifying suspension geometry.
The unit is tuning-oriented: increasing local stiffness alters how load moves between front and rear, helping sharpen turn-in and improve high speed stability on on-road setups. It is designed to use the stock M08 mounting points and to work alongside changes to shocks, anti-roll bars, and tyre or tire selection.
Fitting is straightforward for those familiar with M08 servicing; the stiffener attaches at the factory plate locations and usually replaces or supplements the original bracing. During installation check fastener torque and alignment, and inspect nearby screw holes and bearings for wear when you change chassis stiffness.
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