Magnaflow Cat-Back Exhaust for F8X BMW M3/M4 (19187) K&N With these replaceable friction plates

With these replaceable friction plates there is no need to replace the entire flywheel when the clutch or flywheel is at the end of it's life

8mm Moly CUS IPA CUS Standard 8550XX 85

Wastegate open pressure setting for controlling boost spikes and faster spool

• HKS is 0

SD is the "Standard Duty" and can handle up to 450 WHP

Magnaflow Cat-Back Exhaust for F8X BMW M3/M4 (19187) K&N With these replaceable friction platesMagnaFlow Sport Series Black Cat Back Exhaust for 2015 2020 BMW M3 M4. Features a full, 409 stainless steel construction with mandrel bent 2. 5" tubing and 3. 5" dual tips with a stealthy satin black high temp coating throughout. Vehicle Fitment: 2015 2018 BMW M3 (F80) 2015 2020 BMW M4 (F82 F83) Install Instructions: PDF Install Guide The Sport Series Black Exhaust System delivers maximum performance, reduced mass and an aggressive exhaust sound.