OBX Univeral Muffler MV1015 Double Layer Tip Honda Civic Prelude Accord S2000 CRX SI CR-V THREE LAYER DESIGN ALUNINUM STEEL CENTER TUBE CENTER TUBE IS DOUBLE WRAPPED WITH SUS304 WOOL INSULATED WITH ROCKWOOL FIBER GLASS BETWEEN THE TUBE AND MUFFLER'S SHELL Slant Cut Tip