Introduction: 
SINUS Extreme Performance series was released by our R&D department in order to upgrade high performance engine valves OEM definitions significantly and provide our customers with a winning valve, each optimized to the engine specifications and restrictions.


CHROME NITRIDE (CRN) ENGINE VALVES:

We offer a unique Chrome Nitride (CRN) surface treatment done over PVD process to be added to our already premium quality standard valve in order to present an improved valve on both external appearance level and technical specifications level.

TITANIUM NITRIDE (TIN) ENGINE VALVES:

Our special Titanium Nitride (TIN) surface treatment done over PVD process is offered as an improving addition to our standard grade valves which are featuring impressive properties as it is. The SINUS TITANIUM NITRIDE valve will guarantee a satisfied customer to all high performance engine valves vendors.

ZIRCONIUM NITRIDE (ZRN) ENGINE VALVES:

The unique Zirconium Nitride (ZRN) surface treatment done over PVD process offered by SINUS Ltd presents a yet to be seen valve external design along with improved properties and upgraded qualities of our already impressive standard grade valve.

MIRROR POLISH ENGINE VALVES:

SINUS Ltd MIRROR POLISH valves will attract the attention of any engine valve professional. This valve is cutting edge on both exterior and technical specification levels.