What's the cheapest way to make my 2007 379 peterbilt loud? Can I just gut the mufflers?

yea as long as you stay out of California .you can also put on bigger stacks that will make it echo and be louder|||the law says that all commercial vehicles in the US have to have mufflers and altering a muffler in any way for its originality is also against the law. its your money so do as you please. i have seen big rigs sitting in a weigh station, put out of service because of straight pipes.|||We have done this to quite a few trucks with stacks! Take the mufflers off and repalce them with straight pipes. If you want it to look like it has mufflers make some spacers for the heat shield and put the heat shield over the strait pipes. You can tell from a distance that the mufflers are gone. Gutting the mufflers will give you a annoying tinny sound.|||Life isn't hard enough for you. Either that, or the 2000 watt subwoofer in your car isn't loud enough for you any more either. Say this; H e a r i n g t e s t. Now make an appointment with the doctor.|||yeah you could but it might not be healthy, you can make a hole someone in the exhaust pipe and it will make it loud, not sure where tho.|||Straight pipes.No mufflers.|||Why!