There is extra space on the bracket for drilling your own hole pattern, if using a slider with a less common hole mount. These are made to order. Professional installation is highly recommended. NOT DESIGNED FOR OEM SEATS. The item "PLANTED SEAT BRACKET FOR 1999-2007 TOYOTA MR2 SPYDER W30 CHASSIS PASSENGER" is in sale since Saturday, February 25, 2017.This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Interior\Seats". The seller is "autostars_inc" and is located in Yakima, Washington. This item can be shipped worldwide.