Replace mufflers
Thread Starter
2nd Gear
Joined: Mar 2022
Posts: 2
Likes: 0
Replace mufflers
Have an 07 base model with automatic trans. Looking for recommendations on replacing just the mufflers with better sound and no drone. Know this has been discussed many times but I was unable to find previous threads. Not wanting loud mufflers, but would like to hear the engine idle at least. Thanks.
Melting Slicks
Joined: May 2018
Posts: 2,090
Likes: 599
From: Question Government
Which Magnaflows? That I do not know. They were already on the car when I bought it. I can tell they are welded on not clamped, and in the original mounted area as the OEMs. You may want to find out the inlet diameter for the stock mufflers then buy the Magnaflows online. Then find a fair & reputable muffler shop to weld them on without over charging you.
Heel & Toe
Joined: Oct 2022
Posts: 16
Likes: 10
From: Laurel, MS
I have factory NPP mufflers with headers and offroad x-pipe. It truly is the best of both worlds.
With a mild to wild switch you can hear the rumble at idle when the valves are open. With my setup there is some drone at highway speeds with the valves open. However, one flip of the switch to close the valves and it's quiet again. Even with headers and x-pipe my car sounds almost factory quiet with the valves closed.
With a mild to wild switch you can hear the rumble at idle when the valves are open. With my setup there is some drone at highway speeds with the valves open. However, one flip of the switch to close the valves and it's quiet again. Even with headers and x-pipe my car sounds almost factory quiet with the valves closed.
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Heel & Toe
Joined: Oct 2022
Posts: 16
Likes: 10
From: Laurel, MS
I agree! I should clarify, I'm simply making a case for dual mode exhausts of all kinds. Stock NPP, Corsa, electric cutouts, etc. If my car did not come factory with NPP I would most likely go with electric cutouts or Corsa dual mode.
Heel & Toe
Joined: Aug 2020
Posts: 24
Likes: 28
From: Niagara
Mufflers
Have an 07 base model with automatic trans. Looking for recommendations on replacing just the mufflers with better sound and no drone. Know this has been discussed many times but I was unable to find previous threads. Not wanting loud mufflers, but would like to hear the engine idle at least. Thanks.
Last edited by Monty06; Oct 28, 2022 at 07:01 PM.
Safety Car
Joined: Sep 2007
Posts: 3,998
Likes: 487
From: South Florida
NPP are a good option. Anything will be better than the base mufflers. Could really use any aftermarket muffler that will fit in the space provided. NXT step performance sounded amazing on my c5, they make them for the C6 but haven’t heard them in person. No drone even when I went with longtubes and no cats.