Introducing the Mishimoto 2021+ BMW G8X M3/M4 performance heat exchanger

Includes high-quality

Tilton 600-Series 3-Pedal Underfoot Assembly

ensuring your engine operates reliably even under high stress and heat

O-ring Wire Kit E64 Introducing the Mishimoto 2021+ BMWO ring wire kits utilize 304 stainless wire to properly seal your cylinder heads or engine blocks. Kit is available in 15 foot rolls , enough to cover 10 Cylinders. Kit includes installation tool and instructions. Doesn't need to be replaced when installing new gaskets. O Ring Wire Thickness: 0. 041 in. Installation requires the expertise of an engine builder.