When the flywheel is replaced, it is recommended by the vehicle manufacturer that the misfire monitor neutral profile correction procedure must be performed. Flywheel bolts included (M10-1.00 X 25mm).
XACT Flywheel Streetlite
Noticeably improved engine response and acceleration, OE to mild gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for street and race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability
600670 is a Streetlite flywheel, which is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT's Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.

Fitment:
Ford Mustang Base 2011
Ford Mustang Base 2012
Ford Mustang Base 2013
Ford Mustang Base 2014
Ford Mustang V6 2015
Ford Mustang V6 2016
Ford Mustang V6 2017