I was going to get the 40 series flowmasters for my 350 4bbl, but then i heard about the super 40's that flowmaster makes now. Does anyone have any info about em?

i was wondering the same thing

Flowmasters are for Mustangs,,,,Dynomox ultraflo welded ovals are for Chevys :D

I didnt want to know that you hated flowmaster. That wasnt my question.

Where did I say that I hated flowmasters? What I meant was every Mustang you see has flowmasters on it. From my experience,the Dynomax is a much more free flowing muffler. By all means,buy flowmasters and while you're at it,why don't you go to their website and read up on it? I used to have a link to a website that showed the difference,seems like it was an Oldsmobile website. FYI this site isnt the holy grail, its okay to do some research on YOUR own,if you're able to graemlins/thumbsup.gif

The 40 Series are great. I have them on my 454 $ bbl. and they sound great at all RPM's. At idle they are quiet, but you can definatley hear the cam. At WOT throttle the sound resembles a dragster. (So maybe im exagerating, but it is a beautiful sound :D ). Hope this helps,
Chris

I have the Flowmaster 40's called Delta Flow, those are the new ones. Hooker Super Comps 1 7/8 with my Brodix Headed SB 406.
Idle they sound great, WOT sounds more like a NASCAR, than a dragster, real nice sound to them at any RPM. I drive the street all the time and the noise police don't bother me at all. Forget listening to tunes, but who does when you have that kind of cammed sound anyway. On the Chassis Dyno I had a big gang gather around, they all liked what they heard, general concensuss was " Very Healthy Sounding Small Block" They all wanted to know what the muffler system was.
Pipe is 2 1/2 in and out, could have stood 3", but 2 1/2 sets off car alarms just fine.

actually they just made soem new ones called super 40s, not the delta flows

I had the new Flowmaster 3 inch kit with the 40 series installed a couple of months ago. They sound awesome. Ecspecially at WOT I haven't talked to one person with a negative comment about the way they sound. Not that it would matter to me anyway. By the way I replaced the ever wonderous Dynomax ultra flow mufflers. I haven't heard the other 40's though.

Originally posted by Rapid Robert:
Flowmasters are for Mustangs,,,,Dynomox ultraflo welded ovals are for Chevys :D Bob,
I have Dynomax ultraflo welded ovals on my 5.0 mustang ;) :D

I just ordered one last week...I'll let ya know how it sounds. I had a pair of regular 40's on my '70, so I should be able to tell the difference. (I hope)

Originally posted by Rapid Robert:
I used to have a link to a website that showed the difference,seems like it was an Oldsmobile website. Is this the chart?

http://exhaustsoundclips.com/cfm.pdf

just a question to toss out into this thread..... what do you guys think of the Sweet Thunder Chambered Pipes, or Chambered Pipe sound in general? i'm curious about these to replace my super turbos

im bolting ona a flowmaster american thunder series header back 2.5 in kit on my 72 chevelle, ill let ya kno that one sounds. im waiting for pay day to roll around, i need a few more parts :rolleyes: and i owe ppl money, but you kno how that goes, lol

ill let ya kno how it sounds the day i get the rest of my stuff (shorty plugs and 90degree boot kit....and gas!) i work part time, make 800 a month and almost every penny goes to my car :D

~Kevin