Product Overview A'PEXi 113AF015-B RS EVO Muffler- Type B Pipe Diameter 70mm. - 75mm x 2 Tip Diameter 120mm. x 2 2008-2014 Subaru Impreza WRX STI (H/B Only) - Titanium Tips 2011-2014 Subaru Impreza WRX STI (H/B Only) - Titanium Tips