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Old May 14, 2013 | 03:58 AM
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Default Exhaust Drone

I installed a set of SLP canister style mufflers on my wife's GXP. They sound great! But have A LOT of drone until you get into OD and the converter locks up. My question is, if I take out the resonator I know it will be a little louder but will it help with the drone or make it worse? What about a catless DP?
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Old May 14, 2013 | 08:14 AM
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Removing the cat and res would just increase drone. I run the 3'' downpipe with no cat and no res into the MF cat-back. I get some drone but it's the nature of the beast. Hard to say what setup would work best for you but maybe different mufflers would help?
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Old May 15, 2013 | 02:01 AM
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Idk these mufflers are a straight through baffle style muffler just like a magnaflow.I know a chambered muffler like a flowmaster wouldnt have the drone but I cant stand those.
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Old May 15, 2013 | 03:41 AM
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Originally Posted by 99corvette
Idk these mufflers are a straight through baffle style muffler just like a magnaflow.I know a chambered muffler like a flowmaster wouldnt have the drone but I cant stand those.
quite the opposite chambered mufflers are the ultimate drone machine
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Old May 15, 2013 | 03:47 AM
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Nope, I've never had drone with a chambered muffler. Only baffled ones. A lot of it has to do with the way the exhaust system is setup
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Old May 15, 2013 | 03:58 AM
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Maybe try replacing the resonator with a Dynomax VT?
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Old May 15, 2013 | 04:05 AM
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Not sure what that is Brian?
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Old May 15, 2013 | 05:28 AM
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http://www.dynomax.com/mufflers.php?muffler=vt
I wish I could give a review on them, but with me being the motivationaly challenged individual that I am. There still in the box.

From what I've heard, zero drone.
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Old May 15, 2013 | 05:30 AM
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Sounds like a good concept! It would just suck when that valve sticks or fails. Kinda seems like the mufflers the c6 zo6s have with the valves that open after 3k Rpms
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Old May 15, 2013 | 05:40 AM
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After looking at it a little closer I don't know if there is room for it where the resonator is?

As far as it failing, its all SS so I would think it would last. I know they had issues with the spring when they 1st came out, but I haven't heard any bad reviews since they revised it. I believe there is a lifetime warranty on them?
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Old May 15, 2013 | 05:44 AM
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Oh ok missed the SS part. Yeah I don't believe there would be room. I would be interested in hearing a GXP with the stock mufflers replaced with a set of those
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Old May 15, 2013 | 11:55 AM
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Are you using the stock piping and welding on mufflers?
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Old May 15, 2013 | 01:38 PM
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bet your just hearing it when it goes into 4 cylinder mode.
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Old May 15, 2013 | 04:15 PM
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No DOD is turned off. And yes stock piping just swapped mufflers
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