---Manufactured from highest quality T304 grade stainless steel ---Free flowing system to get the most from the Turbo four cylinder ---2.5" tailpipes designed to fit the OEM rear valance ---Designed to improve power and torque across the entire RPM range ---Noticeably improves throttle response Compatible with: ---Mazda 6 MPS 2.3 Turbo 2005-2007 models.