The Turbo XS donut gasket for 2002–2011 Mazda RX-8 stock catalytic pipe is a direct-fit exhaust seal sized with a 63mm inner diameter to replace the original donut seal. It restores a proper exhaust joint connection during cat-pipe or exhaust repairs and is intended for routine exhaust service where a collapsed or leaking gasket requires replacement to re-establish a tight, leak-free seal.
Turbo XS 02-11 Mazda RX8 Stock Cat Pipe Donut Gasket