ACT 16-17 Mazda MX-5 Miata ND XACT Flywheel Streetlite Engine Components>Engine Hardware Alternating variable speed: Same as

Alternating variable speed: Same as mode 4

and therefore this exhaust is fully legal for street use

this kit also includes our silicone boots with DuraCore(TM) technology

Dual 4" Polished Tips: Finishing off this system are dual 4" diameter

ACT 16-17 Mazda MX-5 Miata ND XACT Flywheel Streetlite Engine Components>Engine Hardware Alternating variable speed: Same asNoticeably 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