I’ve tried all the clutch brands and they all suck. The only one that actually pulled air at idle was the uro. Personally I’d ditch the clutch and put an good electric fan in there.

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero