Bolt-on rollbars...
 

Just bought a bolt-on rollbar for the 90 mx-5. Was wondering if this is a hard part to install. Any questions or info would be greatly appreciated. Thank you, Jonathan

Not Difficult at All
 

Due to the age of the post, I am going to assume that you figured it out. For anyone else passing through, no... it is not difficult to do at all. I have seen that many do not come with proper instructions so it is good to check with someone who has done it before. One of THE most critical steps is making sure that you J-B weld and/or spot weld the seatbelt tower inserts in place or they WILL rattle no matter how tight you make the bolts and WILL drive you insane. Any other questions, I will be glad to provide.

How about "weld-in" Roll-Bars/Cages?
What size Tubing do they recommend?