You need a gasket for inbetween the downpipe and turbo?? The triangle gasket is used on the up pipe to turbo? Is this a stock downpipe? Should be able to get whatever you need from ATR, as they carry stuff for our turbo/exhaust setup. If its the downpipe then most likly you just need a 2.5in donut gasket........you could probably get that from you local parts store.