The SPEC Aluminum Flywheel for Scion xD 1.8L (2008–2013) replaces the stock flywheel with a lighter aluminum unit to reduce rotational mass. This change sharpens throttle response and can improve engine responsiveness, particularly on modified engines. It’s a direct-replacement part for the listed Scion xD 1.8L applications and pairs naturally with upgraded clutch kits when reducing inertia is desired for quicker revving behavior.
Spec 08-13 Scion Xd 1.8L Aluminum Flywheel