UFO Sightings

If you’re a truck owner, you’re probably quite familiar with how powerful they are. Trucks are meant to haul and tow heavy loads without strain, which is why they require so much power. Yet most manufacturers equip their trucks with fairly quiet exhaust systems in spite of their powerful engines. If you want your truck’s sound to show its power, or you want reduce some of the constrictions in the exhaust, you might want to consider adding to or changing the exhaust system.

The factory exhaust system already on your truck is already a pretty efficient system and doesn`t really need much modifications to be improved. The first part of your truck’s exhaust system is the exhaust manifold, which channels exhaust from individual cylinders into larger main pipes. These systems are efficient and don’t need to be changed, but if you decide you want to anyways, you’ll need a set of headers. Quality headers like the ones you’ll want will have a ceramic coating and factory mounting points for the sensors. Most of the time though, the standard manifold is more than good enough.

After the manifold, exhaust travels through the catalytic converters. These are already very efficient and legally required to be on your truck, so you’re much better off leaving these alone. The only time you’d do really do anything with the factory catalytic converter is if you were adding an extremely powerful upgrade to your engine, such as a turbo- or supercharger.

The exhaust gases cool a bit as they enter the muffler after going through the catalytic converters. This part of the factory system is usually also perfectly fine, and won’t be too restrictive. Replacing the mufflers will probably only result in a small torque gain of 5-10 ft-lbs, and a hp gain of 3-5 hp. Using after market mufflers, however, will make a great change in how your truck sounds. It’ll add an exciting roar that easily justifies the cost of the muffler. The exhaust exits the truck out of the tailpipe after the mufflers. Truck owners often like to add tailpipe tips, but these are strictly ornamental, and serve no functional purpose.

Since changing the factory muffler will have the biggest effect on your exhaust system, they’re the most logical component to replace. When you’re looking at after market mufflers, here are some things to consider:

First, do you want to hear the exhaust ALL the time? In other words, when you drive down the highway, is a little exhaust drone OK? If not, make sure you choose a muffler that’s not described as being loud. Check the web and ask your local muffler shop for advice on finding a good muffler. Many muffler manufacturers are even putting sound clips on their websites now.

Second, do you want something that people can slightly hear when you drive by, or do you want something so loud that the neighbors know exactly what time you leave for work every morning? Words like “racing” or “glasspack” usually indicate exceptionally loud mufflers, so watch out for those terms unless you want a lot of attention.

Choosing between a single or dual exhaust muffler is another important decision you’ll have to make. If your truck came with a single exhaust, then a single after market exhaust will be enough to keep good performance. If you prefer to get a dual exhaust, be prepared to spend more money in exchange for better sound and look. Make sure your installer works around your trailer hitch, or leaves room for one, just in case you decide to add one later.

Your final decision is which exhaust material system you’ll use. The right material for you will depend on where you’re located geographically. If it’s anywhere near a saltwater body, buy stainless steel. It may cost more, but stainless steel will be a wise investment since the saltwater in your environment is harsh on regular galvanized or aluminized steel. Drivers in dry climates won’t really benefit from the extra cost of stainless steel, since it’ll take years for rust damage to occur if it gets into the system.

Filed under: Vehicles