depends sometimes jeremy...they have been known to go right outta the blue, and he has an unvented opti, and gl finding an unvented for under 250 or so...jump on camaroz28.com and search for Dal..he works for a dealership outta state and as far as i know gets them the cheapest..may even wanna talk to leon, Zdriver96. as for putting one in..it can be a pita because you could put it in backwards and have to spend another 2.5-4 hours redoing the install.