Check the listing for details. 2Pcs Front Shock Struts Assembly Real Time Damping Fit -Buick Regal GS 2012-2017. Condition: New. Listed at 236.99 USD. Shock Type: Electronic Damping. Fits for Buick Regal GS Sedan 4-Door 2.0L l4 FLEX 2012-2013. Fits for Buick Regal GS Sedan 4-Door 2.0L l4 GAS 2014-2017. Fits for Buick Regal Base Sedan 4-Door 2.0L l4 GAS 2014-2017.