Tomei Head Gasket Set EJ255 2006-08 WRX EJ257 WRX STI 2004+ EG6 475 Mercedes Benz SL500 Base

475 Mercedes Benz SL500 Base V8 5

Like all Elite Series ECUs

-Radium 18-0014

Important Emissions Note: This product does not have a CARB EO #

Tomei Head Gasket Set EJ255 2006-08 WRX EJ257 WRX STI 2004+ EG6 475 Mercedes Benz SL500 BaseSpecs: Bore 101mm Custom Rib Design (Improved Seal Around the Water Gallery) With each model change from Subaru engineers the improved engine design from the GC8 to GDB and A models had the increased the rib of the outer bore diameter which improved the gas sealing characteristics. But the results of that change made the water and oil galleries seal decrease. So when the power is increased there is also the increased possibility for oil and water