Intake valve kit MINI COOPER R56 2007-2012/PRINCE ENGINE (Peugeot EP6 207GT/308GTi/408/Citroen C4/ DS3 w/ THP150 /175 engine) 8pcs Honda Diagrams: D0308 Rear suspension Polyurethane

Intake valve kit MINI COOPER R56 2007-2012/PRINCE ENGINE (Peugeot EP6 207GT/308GTi/408/Citroen C4/ DS3 w/ THP150 /175 engine) 8pcs Honda Diagrams: D0308 Rear suspension PolyurethaneThe production of our race valves begins with a one piece forging where the valve head is forged in a slow two step process to maintain a good material flow. Then it is machined on the CNC in several stages to ensure the precision of the final dimensions. Then, we perform another thermal treatment for relaxation, followed by nitride curing (or coating process depending on the application). Finally, we perform one more grinding followed by a patented

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