If EBC USA get a customer with a specify engine model, perhaps just send him a kit and ask him to trial fit carefully, if it doesn't fit we will accept a refund.

This Part Fits:

Year	Make	Model	Submodel
2008	Mazda	RX-8	40th Anniversary Edition
2004-2007	Mazda	RX-8	Base
2008-2011	Mazda	RX-8	Grand Touring
2009-2011	Mazda	RX-8	R3
2005	Mazda	RX-8	Shinka
2008-2011	Mazda	RX-8	Sport
2008-2009	Mazda	RX-8	Touring