輸入マフラー Borla 11814 05-08 Corvette Coupe / Conv 6.0L / 6.2L 8cyl 6spd RWD Touring SS Exhaust Borla 11814 05-08 Corvette Coupe/Conv 6.0L/6.2L 8cyl 6spd RWD Touring SS Exhaust