QUESTION....Pro Chamber and the dreaded "drone"

Bossman · February 22nd, 2007, 11:16 AM

I called MAC to see what they would suggest to get rid of the drone in my car. He said resonators or the MAC Pro chamber would help to quiet it down.
Just wondering if anyone knows anything about the Pro chamber?? What exactly is it, it looks like instead of an "H" its just a Chamber, hence the name.......I think I just explained it to myself

Has anyone installed this on their car AND did it make it a lot quieter? Did it help with the drone?

http://www.lmperformance.com/5597/73.html

oldernewbie · February 24th, 2007, 07:50 AM

I don't have any experience with the MAC Pro Chamber, but I did purchase and install their axle-back mufflers (everything else stock). I ran them for a couple days and the cabin drone was unreal!!!...put the stock mufflers back on. So now MAC recommends their Pro Chamber to quiet things down??

I spent over $300 on the mufflers and for an additional $300 +- can quiet things down

.

Bossman · February 24th, 2007, 10:33 AM

I can help you!!!!

I went out and bout a pack of Dynamat extreme....9 sheets. I tore my trunk apart and Dynamatted everything in site!

Did it help with the drone? NO......

No big deal because it did make the car sound a little tighter, I think I'll do the whole car. ANYWAY, i decided to fold the rear seats down and try that...That DID help a little, but not as much as I wanted so I sat and thought....?
I decided to cut some pieces of the Extreme Dynamat and put them on the top of the MAC mufflers. BINGO!!!!! This cut the drone in half!! I still have some drone but it is WAY better and very tolerable. Before I thought my head was going to explode but now its just a little loud.
It also seems to have made the mufflers drone over a shorter rpm range AND it seems like its a little louder at an idle if you stand behind the car?!

To sum it all up.....I put a piece of Extreme Dynamat on my mufflers and cut the drone in half!!

GTNorm · February 24th, 2007, 11:08 AM

It is always a pleasure to watch someone figure out their own answer.Good engineering bossman.

miafan · February 24th, 2007, 01:14 PM

x pipe would have made it louder w/less drone!

Bossman · February 24th, 2007, 01:16 PM

Originally Posted by miafan

x pipe would have made it louder w/less drone!

And cost more money, and make it a little more raspy..........I don't want it any louder, this thing screams as it is. Now its perfect with a $10 fix!

miafan · February 24th, 2007, 01:30 PM

10-4

Goldenpony · February 26th, 2007, 07:59 PM

An easier fix-CORSA!

Bossman · February 26th, 2007, 08:43 PM

Originally Posted by Goldenpony

An easier fix-CORSA!

I hate the sound of Corsa....at least the ones on the internet. I love the sound of my MAC's. All I had to do was toss a little square of dynomat on them and they are Da bomb!! Now thats easier AND cheaper than Corsa!

Stkjock · February 26th, 2007, 09:14 PM

glad that worked out for you Bossman.....

February 22nd, 2007, 11:16 AM	#1
Bossman Regular Join Date: Oct 2006 Posts: 285 iTrader: 0 reviews	QUESTION....Pro Chamber and the dreaded "drone" I called MAC to see what they would suggest to get rid of the drone in my car. He said resonators or the MAC Pro chamber would help to quiet it down. Just wondering if anyone knows anything about the Pro chamber?? What exactly is it, it looks like instead of an "H" its just a Chamber, hence the name.......I think I just explained it to myself Has anyone installed this on their car AND did it make it a lot quieter? Did it help with the drone? http://www.lmperformance.com/5597/73.html __________________

February 24th, 2007, 07:50 AM	#2
oldernewbie Softcore Porn Enthusiast Chebby Colorado 5 Banger Redlines In Neutral Join Date: Jul 2006 Location: 3000 Miles East Of The West Coast Posts: 1,018 iTrader: 0 reviews	I don't have any experience with the MAC Pro Chamber, but I did purchase and install their axle-back mufflers (everything else stock). I ran them for a couple days and the cabin drone was unreal!!!...put the stock mufflers back on. So now MAC recommends their Pro Chamber to quiet things down?? I spent over $300 on the mufflers and for an additional $300 +- can quiet things down . __________________ 2005 Colorado LS, Z71 Off Road Package, I5 Vortec, Space Age Plastic Bed-Liner W/Shiny Factory Installed Deep Drop Tool Box, Twin 12 Volt Power Points...In A Whopping 200+ HP Beast.

February 24th, 2007, 10:33 AM	#3
Bossman Regular Join Date: Oct 2006 Posts: 285 iTrader: 0 reviews	I can help you!!!! I went out and bout a pack of Dynamat extreme....9 sheets. I tore my trunk apart and Dynamatted everything in site! Did it help with the drone? NO...... No big deal because it did make the car sound a little tighter, I think I'll do the whole car. ANYWAY, i decided to fold the rear seats down and try that...That DID help a little, but not as much as I wanted so I sat and thought....? I decided to cut some pieces of the Extreme Dynamat and put them on the top of the MAC mufflers. BINGO!!!!! This cut the drone in half!! I still have some drone but it is WAY better and very tolerable. Before I thought my head was going to explode but now its just a little loud. It also seems to have made the mufflers drone over a shorter rpm range AND it seems like its a little louder at an idle if you stand behind the car?! To sum it all up.....I put a piece of Extreme Dynamat on my mufflers and cut the drone in half!! __________________

February 24th, 2007, 11:08 AM	#4
GTNorm Enthusiast Join Date: Jun 2006 Posts: 511 iTrader: 0 reviews	It is always a pleasure to watch someone figure out their own answer.Good engineering bossman. __________________ A man with experience is never at the mercy of a man with a theory.

February 26th, 2007, 09:14 PM	#10
Stkjock Enthusiast 2006 Vert 11.49 @ 121.45 Join Date: Feb 2007 Posts: 520 iTrader: 0 reviews	glad that worked out for you Bossman..... __________________ Sold - 06 GT- 4000lb Rowing machine 11.49 @121.45 2008 Shelby GT500 4.0 Whipple - L&M Engines - Lund Racing Tuned - E85

February 24th, 2007, 01:14 PM	#5
miafan Regular Join Date: Dec 2006 Posts: 206 iTrader: 0 reviews	x pipe would have made it louder w/less drone!

February 24th, 2007, 01:30 PM	#7
miafan Regular Join Date: Dec 2006 Posts: 206 iTrader: 0 reviews	10-4

February 26th, 2007, 07:59 PM	#8
Goldenpony Regular Join Date: Oct 2006 Posts: 269 iTrader: 0 reviews	An easier fix-CORSA!

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