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- This set can also be used as transmission suspension mounts on the Boxster and Cayman models
• Lowest backpressure
History and Technical Notes:On nearly all air-cooled 911s
#930-107-125-TK
Factory Original Intercooler Specifications:
Niresist Ring Set : 911/930 Category_Engine - This set can alsoThese CNC machined high nickel stainless steel rings provide a reliable interlocking seal between the cylinders and heads. Should the cylinder head lift slightly under combustion, the ring is a barrier against the combustion gas leaking out and damaging (melting) the machined sealing surfaces of the cylinder and head. Applicable to both high compression non turbo and elevated boost turbocharged engines, the concept dates back to the Porsche 935 race
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