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2.5L 12v - M20B25
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2.5L 12v - M20B25
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Kit 6 reinforced exhaust valves SUPERTECH for BMW 2.5 12V M20B25 engine:
References: BMEVN-1084, BMEVI-1085.
The reinforced exhaust valve kits by SUPERTECH for the M20B25 engine are made up of 6 valves.
Below (click the images) are the accessories for the BMW M20 engine:
Technical specification 
SUPERTECH valves are machined from a forged blank, then CNC machined for optimum precision. They then receive a heat treatment (which varies according to the valve's application) and are ground again (superfinishing process). SUPERTECH valves are checked by various means such as ultrasound, X-ray and laser measurement.
For more than three decades, SUPERTECH has worked to find the most suitable materials for each valve and each application in order to increase reliability. There are therefore different valve materials such as stainless steel, Inconel, titanium and sodium (the latter is present in the valve stem and allows better heat dissipation).
