Interior noise with magnaflow or flowmaster? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-08-2005, 01:37 AM   #11
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Louder yes, as loud as a car with a broken downpipe... no.

I just want to make sure I can get a nice sound concentrated towards the rear of the vehicle. I drove a 79 C20 before I got the bonnie with a 350 and straight pipes, the sound never got bad in the cab since the pipes were over 8 ft away Just making sure the same will be true with the car, I have never put performance exhaust on a car.

Thanks again!
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Old 06-08-2005, 07:46 AM   #12
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If it gets too loud for you, just put a resonator on. Go without at first.. chances are it won't be that bad.


-justin
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Old 06-08-2005, 08:52 AM   #13
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I just replaced the muffler left everything else that was on the car, and it was fine. So if I was you I would just start by replacing the muffler, if it is not loud enough then remove the resonator. I am pretty sure that you have one on the car presently.
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Old 06-08-2005, 12:13 PM   #14
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Nope, pre-1994 don't have resonators. And I can verify that our cars don't.


-justin
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Old 06-13-2005, 05:06 PM   #15
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If adding a cat adds noise wouldn't the noise be right under the driver?
I kinda like my stock low rpm rumble that is NOT pressent @2000 rpm..
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Old 06-13-2005, 07:38 PM   #16
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I think the high flow cats make more noise because they are less restrictive. This does not mean that it makes more noise right above the cat. Just that it lets more exhaust [which includes exhaust noise] through.


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Old 06-14-2005, 10:24 AM   #17
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makes sense
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