You can fit a mk1b rear bar however it's mounted slightly further back so there's a little bit of modding required where the mounting brackets bolt to the chassis.

The rear mounting hole on the mk1a becomes the front hole with the mk1b bar fitted then you have to drill additional mounting points for the rear of the bracket.

If you're going to that much trouble then you may as well uprate at the same time as the standard mk1b rear bar isn't up to much either.

You can either buy a mk1b White Line bar or for much the same effect at a lower price you can fit a mk2 bar.
