Grimmspeed Phenolic Spacer Upper IM - Genesis V6 - 083001 75.5mm 4214125 is a 4-pad spring-centered

4214125 is a 4-pad spring-centered race disc made with high quality

meaning a faster to center position

2LSU Wideband UEGO O2 replacement sensor kit includes only the sensor (with attached cable and male connector) and is intended to replace an existing mounted wideband sensor used with AEM wideband air/fuel UEGO controllers

13-16 Scion FR-S 2

6212111 is a 6-pad spring-centered race discs made with high quality ceramic friction materials

Grimmspeed Phenolic Spacer Upper IM - Genesis V6 - 083001 75.5mm 4214125 is a 4-pad spring-centeredPhenolic Spacers have been used for years by many other specialized automotive companies, but this is new technology to the Hyundai world. Greatly reduces the transfer of heat from engine to intake manifold thus reducing heat soak. True Phenolic material, not cutting board material like others. The cooler your intake temperature is, the denser the air is which leads to more power. For every 5 degree reduction in temperature, increases power by 1%. The