Peugeot 306 GTI-6 Billet Steel Lightweight Flywheel - 215mm - SPOOX MOTORSPORT. Manufactured in England by the UK's largest and most successful Peugeot & Citroen Tuner, Spoox Motorsports CNC machined single piece billet steel flywheel with integral starter teeth is fully electronically dynamically balanced, ensuring the lowest possible weight whilst not compromising strength or reliability.