BORLA 11970 Axle-Back System MAZDA 3 '19-'21 2.0L/2.5L NA i4 AT/MT FWD ymm_36 remapping the ECU is mandatory

remapping the ECU is mandatory in order to prevent potential “check engine light” warning signals

Single 4" bright chrome on T-304 stainless steel tips per tail pipe

Specifications Socket Size(s) 5/16 12pt OAL (Qty: 14) 3

The system comes with quad (2 per side) 4" round carbon fiber tips with bright centers

5" diameter into the mufflers with dual 2" out Cat-Back system features S-Type Classic sound and dual 4" round polished T-304 stainless steel tips on each side

BORLA 11970 Axle-Back System MAZDA 3 '19-'21 2.0L/2.5L NA i4 AT/MT FWD ymm_36 remapping the ECU is mandatoryDescription BORLA 11970 Axle Back System MAZDA 3 '19 '21 2. 0L 2. 5L NA i4 AT MT FWD BORLA presents an Axle Back system designed for the fourth generation Mazda 3 Hatchback. The system features a 2. 5" diameter pipe transitioning into dual 2" pipes and replaces the stock rear muffler with a direct bolt on installation. This S Type Axle Back is specifically tuned for 2. 5L Skyactiv engines, providing a sportier sound and an enhanced driving experience