Grimmspeed Exhaust Manifold to Head Gaskets (Pair) - EJ/FA Engine - 020001 License Plate Delete R6 & R4) are for

R6 & R4) are for use with OE dual mass flywheel

Another great thing is there's no need for tools to disconnect the fitting once installed

Each diaphragm spring endures an exclusive four-stage heat treating process providing a consistent light pedal feel

these are referred to as gas springs

If you're looking for a high volume

Grimmspeed Exhaust Manifold to Head Gaskets (Pair) - EJ/FA Engine - 020001 License Plate Delete R6 & R4) are forAt GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi layer steel OEM style gaskets. The issue with the most exhaust gaskets (including OEM) is that even if they're multi layer, they're not completely constructed of Stainless Steel which leads to leaks. Well GrimmSpeed has your answer, premium multi layer steel w stainless steel fire ring gaskets at a great price. This product cross references