Exhaust backpressure performance change?

[jlobbia]

Hey guys, just wondering. If I change my muffler/exhaust to one that is louder, will it decrease or increase engine performance because of different pressure levels coming from it? Thanks.

 

[johnnydmd]

Different backpressure will alter performance for sure. It's best to research what pipes are best for the engine that you're using.

 

[jlobbia]

Different backpressure will alter performance for sure. It's best to research what pipes are best for the engine that you're using.

If i dent my exhaust, will it also change performance?

 

[olds97_lss]

Big dent, yes, bunch of little dents, yes, a small dent, probably not.

You can remove most of a big dent by sealing the pipe, fill it with water and freeze it. I usually wash it with soap/hot water first, then plug the stinger, fill it, then stand it on it's end in the freezer. If you have a cork to plug the end, it will help too. If it doesn't get the dent all they way out the first time, thaw and refreeze.