Headers/Intake/Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.

7th Gen ('06-'07): Muffler

Old 11-14-2015, 07:54 PM
Thread Starter
Join Date: Oct 2014
Posts: 1
Default Muffler

Hello all,

I have owned my 2006 Monte Calo LT 3.5 for a couple years and looking to get a new muffler. How loud are the flowmaster 40 or 44's? I have searched youtube clips and read the forums here but still undecided. I also don't know much about the magnaflow mufflers. I don't want a whole system just a muffler. Something that sounds good, with a little bit of sound to it, but not too loud.

Thanks in advance.
Old 11-18-2015, 01:41 PM
Join Date: Mar 2014
Location: CA
Posts: 63

I run the flowmaster super 40's and love them. I was originally getting the 44's but was told at my exhaust shop that these sound better on the LS4. Here's a sound clip of my car at idle

Old 11-18-2015, 07:49 PM
Barovelli's Avatar
Monte Of The Month -- April 2016
5 Year Member
3 Year Member1 Year Member
Join Date: Apr 2010
Location: Monterey Bay Area, CA
Posts: 837

Same year, same motor. I have a Flowmaster 40, single outlet. It's just enough to differentiate the car from the rest. Just a cool rumble/moan at idle that does not get obnoxious. Sad that it does not pop/crackle on downshift like the one on the old Firebird I had did.

The sound does drone in the cabin. After driving what was essentially a silent car the change made me have doubts. But when it starts up I forget about the droning sound.

I'll try and get a vid recording up this weekend.
Old 11-25-2015, 05:03 AM
Join Date: May 2015
Location: Fl
Posts: 51

Magnaflow will give a deeper tone. My buddy has one and it sounds good.

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.