[mustang-661]

is it bad for my car to run it with out the muffler i just tuk off the old one and was going to put my new one in but i dont have thime cuz i have to go get a clamp so if i drive with it of is it bad for it

[kenneth]

I think you should be OK for a short trip if your ears could handle it. I wouldn't ride like that for a couple days though.

[Johnstone610]

i had them off tryign to fix a vibration issue and took 2 25 minute rides didnt see any change in performance and it sounded nice haha

[stlwagon]

It won't hurt anything. Not like running open headers.

[travelers]

Originally Posted by stlwagon

It won't hurt anything. Not like running open headers.

Hey there's nothing wrong with open headers. The cops might not like it.

[Mick]

The noise level is going to go up. That may not be a bad thing.

[stlwagon]

Originally Posted by travelers

Hey there's nothing wrong with open headers. The cops might not like it.

Not good this time of year. Bad for exhaust valves when they start sucking back cold air.

[travelers]

Originally Posted by stlwagon

Not good this time of year. Bad for exhaust valves when they start sucking back cold air.

Yea that why you keep the Rsss up say 4 and up. Yea I know.

[jeostang]

I don't have mufflers on my car. Although the turbo quiets it down some.

[Brent05redfire]

the turbos will quiet the exhaust down quite a bit. you may not even have to run mufflers, if the noise level isn't to loud.

I had a turbo car a few years ago and ran straight pipe from the turbo back.