Yes, you don't need it . The brackets are wrong for the sync and you will have to notch one opening for the plug to gose to box in the kit . And I had to work on the buttons some they were sticking.
I did find a set of gt350 seat on Craigslist I tried to buy them ,and emailed him I told him I would give the $1,500 for them and would come pick them up ,and with in 3 minutes later he sold them . Then the same set of seat shows up on ebay same pictures as on Craigslist. I hope some one did...