The GTO comes from the factory with a series of bushes biased toward comfort. A Pedderised GTO replaces the factory bushes with urethane bushes that unlike the factory bushes provide 360 degrees of stability control.
Pedders urethane products are made of a moderate durometer urethane using shape and void technology to maintain a high degree of OE ride quality. The GTO is an under tired, under sprung, under damped and under bushed vehicle from the factory. Upgrading the foundational GTO bushes (EP1145 X Member, EP9166 Radius Rod, EP1157 Differential Insert and worn or compressed 5851 Strut Mounts) will alter the vehicle character. The difference between a brand new GTO and a brand new GTO with Pedders Foundational Bushes is the difference in handling and stability between a BMW and a BMW M. These bushes provide a greater return than any other modification you can make to your GTO. Aside form launching better, steering better and stopping better you'll barely notice the difference.
Before you add horse power, before you buy wheels, before you get a tune; address the Foundational Bushes and get maximum return form every other modification. Many GTO owners would describe the ride in a fully urethane bushed GTO as an improvement to the OE ride quality. The Pictures and notes will provide more detail.