what size bolts for downpipe to turbo connection?

Tom Tom Turbo

Turbo Goes Woo Woo
Jul 10, 2002
So in my 2 year long build, I have managed to lose the bolts that hold the Terry Houston downpipe to the turbo. Does anyone know for sure what these bolts are? I've searched and some say M8 x 1.25 30mm long and others say M10 x 1.25 40mm long.

Thanks in advance!
Something you might want to consider using is studs instead of bolts.

Thats what i use with my ATR downpipe and i put anti-seize on the threads going into the turbo so i can remove them later if need be.;)