Will replacing my muffler make my car run better?

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Will replacing my muffler make my car run better?

Postby 89ARIES » Tue Apr 03, 2012 6:24 am

My original 24 year old muffler does have a sustantial leak. Too bad as I rather like the pentastar on it. Does it really affect engine performance and smog?
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Re: Will replacing my muffler make my car run better?

Postby K-CAR_WAGON » Wed Apr 04, 2012 2:58 pm

The muffler does not affect smog - it is there for noise reduction. May have a very minor effect on engine performance since you are changing (reducing) the intended backpressure with the hole. In general, the engine will probably run better from a performace standpoint with no muffler since there is less backpressure. If its bad it should be replaced so that the exhaust gases get directed out the back of the car.
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Re: Will replacing my muffler make my car run better?

Postby project600 » Mon Apr 15, 2013 11:52 pm

what are the signs of a clogged cat?
please help me
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