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ACT XACT Streetlite flywheel for 2004–2009 Audi S4 B6/B7, a lighter-than-stock service flywheel engineered for street or drag use. Materials are distributed to reduce inertia while retaining strength, heat tolerance and rigidity. The Streetlite design is serviceable and can be resurfaced without replacing additional parts, making it a durable choice for lighter rotating mass needs; ACT backs its products with a one-year warranty.
ACT 04-09 Audi S4 B6/B7 XACT Flywheel Streetlite
