Wilwood Caliper-Dynapro Radial 5.98in Mount 1.5in Pistons 0.81in DiscDynapro four piston dust seal radial mount calipers (DPR DS) are an example of Wilwoods continuing upgrade and improvement processes. Combine pure race technology with a new generation of Wilwood performance enhancements. The Dynapro DS combines the versatility of radial mounting with a sleek profile, superior strength, and extreme durability in adverse conditions. The addition of dust wiper seals allow this caliper to be used in localities that