Harness bar
A harness bar is required to fit behind the seats of the Elise, and secured to the rollover bar, before harnesses can be fitted.
There are various manufactourers of harness bars but they fall into two main categories. Those that require the plastic trim behind the seats to be partially cut and those that don't. There are also various bolt patterns which should be chosen depending upon what type of seat you have.
Require cutting
Spyder
Spyder made harness bars for both the S1 and S2.
Plug and play
Sinclaire
aparrently sell a harness bar that can be fitted without the cutting of the plastic trim.
Sinclaire's harness bar fits to top set belt anchor bolts.
PLEASE ADD INFO