Home / Product Model / Civic Si Civic Si Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing all 6 results 2006-2010 Civic Si Exhaust $819.34 View Options 2016-2021 Civic Cat-Back $1,152.00 View Options Civic Turbo Downpipe $874.99 View Options DPW Electric Exhaust Cutout $299.99 View Options Magnaflow 19420 $839.95 View Options Pedal Commander $299.95 View Options