S-Line Vavletronic 458 system.
458 Valvetronic coming soon!! We are nearly complete with our thorough testing of this new product. More details to come
458 Owners can now enjoy the S-line sound with valve actuated mufflers! Kit will include a control unit with three modes. Open- Closed- Factory controlled. Enjoy the famous S-line sound and have the ability to drive quietly when needed.