Has anyone any idea how many studs/bolts and nuts are required when replacing the up pipe on a 2002 WRX? I want to replace them all when getting a decat up pipe fitted but have had different answers from different part suppliers.
Any help appreciated.

 

two nuts and bolts on the bottom, and three studs which have nuts on them hold the up-pipe to the turbo, there are three studs on the turbo-downpipe joint, and two nuts and bolts, you have to remove the downpipe to fit the up-pipe, so maybe you want to replace all the studs...?? if not, 3 studs and 3 nuts....