Eibach S90 4 25 051 Pro Spacer Kit 25mm Width 5x120 Bolt pattern Eibach 25mm Wheel Spacer (Pair) Black for 2011 2015 Kia Optima Eibach Pro Spacer System 5mm Spacers (2) 4x100 Bolt Pattern 54.1 CB Wheel Bolt EIBACH Pro Spacer M12x1,5 Conical Seat F S1112502417 AUTODOC. Eibach PRO SPACER Wheel Spacers for the 2011 2015 Kia Optima are the ideal solution for improving stability and handling, increasing clearance for larger tires, and giving your vehicle that aggressive and commanding presence. By widening the vehicle's track width, wheel spacers lower the center of gravity, reduce body roll, and ultimately enhance capability of your vehicle on or off road. Standard Features Widen Your Stance For Better Handling. Made from High Strength Aircraft Aluminum Alloy. Precision Engineered Hub Centric for Perfect Fit and Wheel Balance. Reduced Weight Compared to Steel Wheel Spacers. Kit Includes 2 Spacers and all necessary mounting hardware. Specifications Part Number S90 4 25 041 B Part Name Wheel Spacer Vehicle 2011 2015 Kia Optima UPC 00803050527110 Color Black Material Aluminum Notes When using 15mm wheel spacers there must be at least 14mm minimum cut outs in the wheel to take up the original bolts, (when using 20mm spacers, 9mm minimum cut out, when using 25mm spacers 4mm minimum cut outs). If this isn't the case, shorter bolts must be used. (System 5, 6). Otherwise the use of this spacers is not possible. Do Not use with Vehicles Equipped with Steel Wheels! Vehicle Fitment 2011 Kia Optima 2012 Kia Optima 2013 Kia Optima 2014 Kia Optima 2015 Kia Optima