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Let s start with a set of Racing Beat s performance springs. Designed by Jim Mederer, Racing Beat s co-founder and chief engineer, to offer improved handling with a modest .75-inch (front " RBPN 70012) and a .5-inch (rear " RBPN 70013) drop in ride height, with a 20% spring rate increase. Perfect for street or autocross applications, these springs will interchange exactly with the stock springs.
Next, RB adds a set of their precision sway bars. These sway bars are designed to reduce chassis-roll in turns and increase the Mazda 6i s sensitivity to steering input, thereby improving maximum cornering power. Each front sway bar is supplied with our heavy duty mounting clamps and replacement urethane bushings and Prothane bushing grease. The stock connecting links are retained to ease installation. The 28.5mm (1.125 ) front sway bar and matched 27mm (1.0625 ) rear bar come complete with all mounting hardware, clamps, bushings, grease, and instructions.