VIN 24514 to 30000

RS42SX is the 9:1 CR engine fitted to all naturally aspirated cars from VIN 24501 to 30000.
From VIN 24500 the standard crankcase was modified to one with cross-bolted main bearing caps. If the VIN of your car is close to 24500 please confirm with us which engine is fitted to your car.

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  1. RS41SX
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