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2015-02-27 Posted by: XP-Niklas

38mm V4 valves in stock

The 38mm V4 exhaust valves is now in stock again.
Changing from standard 37/32 mm valves to 42/37 mm gives about 3 hp on a standard engine and much more on a tuned. We can now offer booth 36 and 38 mm exhaust valves to increase the flow in the V4 cylinder heads :-)

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