It is easy to have the best of both worlds.? Have you purchased our non-resonated ECS Tuning Valved Exhaust System for your B8 S4 and wanted a little less volume?? Easily swap out your resonator delete?with this resonated section in minutes!??
*Only compatible with our ECS Tuning?Audi B8 S4 Valved Cat-Back Exhaust.??
