Southbend DXD Solid Billet Steel Lightweight flywheels!! These flywheels will not degrade drive ability nor will they add the unwanted drive train/trans gear chatter noise associated with other LW aluminum flywheels. These are lighter than the stock unit, Are far more durable than any aluminum inserted flywheel (no expensive to replace warped steel inserts here) If you drag race, track or just drive on the street you will LOVE this flywheel! Because most of the weight has been taken from the circumference of the this flywheel you still get the advantages of less rotating mass while keeping the quite, stock like drive ability. Replaces Stock Dual mass flywheel in all 2003-2006 Nissan 350Z and Infiniti G35

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