countryman found this gasket, this is one i bought as i have decat fits perfectly http://www.camskill.co.uk/m19b0s1303p96033/Toyota_Starlet_Turbo_%5BEP82_EP91%5D_-_Parts_Spares_Tuning_Servicing_Accessories_-_Frontpipe_to_Cat_Housing_Gasket_-_AFTERMARKET_TRIANGLE_SHAPED_GASKET_Toyota_Starlet_Turbo_EP82_EP91