what size is the thread for the egr tubing where it threads into the header i took the egr system out when i installed the header and now the bolt in the header fell out and i can't remember the thread size any help would be much appreciated thanks

I am a new member here, thanks for having me. I am working on some repairs on my daughters grandparents 1992 240sx convertible. The hydraulic cylinders for the convertible top are leaking. I have found replacements for the cylinders but I am curious if anyone has had luck rebuilding the old...

Glad to be part of this great family!

I’m looking for s13 coupes. Shell or Stock. I’m not looking for a crazy build. I’m located at Austin Tx.