Bought a set of 10th gen Civic HFP floor mats and put them in my 9th gen and they fit really well. : r/CivicSi
Honda online store : 2015 CIVIC ALL SEASON FLOOR MATS
Amazon.com: Honda Genuine OEM Civic Si Sedan Carpet (Graphite Black) Floor Mats - Set of 3 2006 2008 2009 2010 2011 : Automotive
Lloyd Mats Custom Fit Floor Mats for Honda Civic 4 Door (Hybrid/Si Ok) 2012-2013 LogoMat 2Pc Set Black - Walmart.com
08P13-TS8-XXX | Honda All Season Floor Mats (Civic Coupe/Si 2012-2015) - Bernardi Parts Honda
2012-2015 Honda Civic SI Coupe Floor Mat Single 12-15 | eBay
2022-2023 Honda Civic All Season Floor Mats - 08P17-T20-110
3D MAXpider Custom Fit KAGU Floor Mat (GRAY) Compatible for HONDA ACCORD COUPE 2008-2012 - Second Row
Amazon.com: KELCSEECS Floor Mats Custom for Honda Civic & Civic Si 2012-2015 Only Sedan (Not Coupe) Car Mats All Weather Guard TPE Automotive Liners Front& Rear Row Full Set Accessories Black :
2012 Honda Civic Floor Mats - Laser measured Floor Mats For Perfect Fit | WeatherTech
Amazon.com: Floor Mats Compatible with 2012-2015 Honda Civic Sedan, Latex Rubber All Seasons Weather Interior Heavy Duty Carpets Black Full Set Front and Second Row by IKON MOTORSPORTS : Automotive