Muffler Deletes – What are they and are they good or bad?

Back when performance and modifying your car was just starting, everyone was doing whatever they could for weight loss, performance and sometimes a just a bit of noise and show. There’s many ways to achieve these goals, but some are more widely adopted due to the fact hat they’re inexpensive and easy to do.

One of the easiest and most popular mods that help your car get a lighter is the classic muffler delete. Quite simply, it’s a pipe that bolts in place of the bulky factory muffler and essentially makes your car loud! Factory mufflers, especially on dual exhaust cars and trucks, are extremely heavy and can weigh up to 100 pounds. Most muffler deletes, depending on type of material, flanges and tip size can be up an 80% reduction in weight. That’s noticeable.

Most muffler deletes come with tips that make your exhaust have a modified look. But if you couldn’t tell from the look of the new exhaust, you’ll certainly be able to tell by the sound. Since there are no mufflers, the exhaust becomes really loud.

We always hear people ask is it legal to remove a muffler? Technically, a muffler delete does not increase emissions as it removes no smog equipment. But some cities and towns can have laws against an exhaust that goes over a certain decibel level limit or even just having a modified exhaust at all. We recommend checking with your local laws to find out what’s considered illegal.

Another common question we hear is a muffler delete the same as a straight pipe? 99% of the time, a straight pipe is referring to a catalytic converter delete. It’s a straight pipe that simply replaces the cat. This absolutely is not smog legal, BTW. A catalytic converters job is to reduce emissions while a muffler’s job is to reduce noise.

And of course, everyone wants to know does a muffler delete add power? Just about every modern car has a very efficient oem factory muffler. It’s able to tone down exhaust sound levels while still allowing smooth flow that doesn’t rob much power, if any. So for most cars, the muffler delete will not add any power. Some cars will gain some power, but generally it’s not much, usually under 5 horsepower. However, if you have a car modified for more power, and still has the stock mufflers, then you’ll have more gain.

We thought it might be good to come with a muffler delete pros and cons list.

Muffler Delete Pros

  • Inexpensive when compared to an axle back or exhaust system.
  • Lightweight and a significant weight difference over stock.
  • Perfect for someone looking for a louder exhaust without breaking the bank

Muffler Delete Cons

  • Can drone in the cabine
  • Can be too loud for some

If you have anything to add to his article or if you have any questions about muffler deletes, exhausts or anything for your car at all, please leave a comment below.

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