This is not a query related to ford trucks. But I hope general discussions about other vehicles are allowed here. I own Honda and Nissan vehicles. I am going for some modifications and custom engine building for Honda Civic VP. Its a 2009 model vehicle and I am Planning to do all those works from Apex Specialized Automotive Inc. I need your help to pick up the suitable mufflers for Civic. That should not affect the power or mileage deeply. Also mention if you have some customizing options for Civic.