I was wondering the best choice of flowmasters 40 or 50 series, or delta force,or delta flow ect... 2.5 or 3 inch.Looking to bring out the best sound for my 396 without to much interior noise,well maybe just a little.Thanks...:beers:

Dronemaster = interior noise.

2 words: hooker aerochamber

I have 2 1/2" with Super 40's. I think it sounds GOOD! Interior noise is not that bad and I can talk or listen to the radio.
Isn't a muscle car supposed to sound like a muscle car?

I have 2 1/2 in Flowmaster Super 40's on my track toy, dumped in front of the axle. I love the sound, but it is way too loud for normal driving. Outside is passable if you drive carefully, but inside is loud. Some of that may be due to the lack of tailpipes and not much interior, but this is not something I want to drive in regularly for more than 5 miles. It makes me want to stand on it just to listen.

I have an American Thunder series full dual exhaust on another car with a near identical engine, and the sound is fabulous, and it is quiet enough for normal driving, for my taste. It has that really great sound at idle. This or similar mufflers is what I plan for the Chevelle when I get to the new exhaust stage.

I just installed a 3" Flow kit w/Delta 50 muffs......haven't driven it on the street yet BUT its much quieter than the 40series stuff :thumbsup:

I have 2 1/2" with Super 40's. I think it sounds GOOD! Interior noise is not that bad and I can talk or listen to the radio.
Isn't a muscle car supposed to sound like a muscle car?
I second that, I want my muscle car to sound like a muscle car. When you step on it, it is kind of an andreniline rush to hear it. It makes the hairs on the back stand up and the heartbeat fast.......I'm not saying to have it sound like Harley, but a nice full tone especially when you punch it is good. Everytime you go some where what do most people say "man it sounds good" besides the looks.
I true dualed out my 67 caddy with the magnaflow 2 1/2 14x9 ovals. It woke that 429 up that had a single muff 2 inch setup. The tone was pretty mild but when I punched it that big boy would move as well as the gas gauge. A guy once told me "man you ought to put resinators on that caddy to quite it down" I said hell no. I guess I had a caddy with a muscle car sound. Sounded good to me and most people always complimented on the sound. I have flowmaster setup on the 69 Chevelle 396 motor
If you want a quieter sound I guess go with a smaller Muff series but man open that bad boy up and put some pipes/muff on there and let em know when you are in the neighborhood or in the parking lot.
I just love the sound.:beers:

I should have also added that I have full exhaust, an H pipe, and the tail pipes exit behind the rear tires to the side of the quarter panel in the stock location.
The only time it is loud on the inside is when I punch it and then that baby will talk to you!! I get as many compliments on the sound as I do on the looks.
Apples to apples. You can not compare pipes that dump into the ground under the car at the rear axle in a race car to a street car with full exhaust exiting outside of the body.
Da$h, the only real way to decide what you NEED is to go out and listen to various cars at a gathering and when you find one that sounds the way you WANT....ask what they are running. Sound is very subjective and depends on engine, how the exhaust is run, etc.

ive had the flowmaster 40s and hated them. too loud. couldnt hear what the engine was doing because of the exhaust,and was afraid to drive it on the stret for fear of getting stopped

I was wondering the best choice of flowmasters 40 or 50 series, or delta force,or delta flow ect... 2.5 or 3 inch.Looking to bring out the best sound for my 396 without to much interior noise,well maybe just a little.Thanks...:beers:
I forgot to tell you what series I have 50 series 52556

Rules of thumb:Flowmasters
1.40 series-more bassy(loud) at idle and louder while driving
2.50 series-moderate bass at idle and driving, loud when you punch it.
3.70 series-quite overall compared to the 40-50 series

So basically:
1.Loud
2.Moderate but I will let you know I am here if you want some
3.People will ask is your car on? Just kidding:D
You make the call bro:beers:

I have 2.5" pipe from the headers to 40 series w/2.5" tail pipes. I (along with everyone else i meet) think it sounds great. However I am the type that loves loud exhaust (to a certain extent). My bro has 2.5" to the Super 40 series with 2.25" tail pipes. The interior resonance is kinda loud on both, but you can do a lot of things to really change that. Both exit out the rear, mine is a bit louder than his however.

Dynamat (or equivalent) would be the best thing to do if you want to cut down on interior resonance a bit. But if you want to see what sounds good, aside from what hpsherlin, you could also search youtube for people who have clips of what their exhaust sounds like. Also, most of the muffler company's websites have clips of what their different mufflers sound like. Good luck.

~Paul

I have Flowmasters on my 70 SS 396 and they are a little louder than I would like. How do you determine what series they are?

I have Flowmasters on my 70 SS 396 and they are a little louder than I would like. How do you determine what series they are?
It is located on the ends......outlet side on some series or on the inlet end on some depending on what model you have. mine say 52556 on the outlet end to the right of the muff looking from the rear. What series do you have?

I have talked to Flowmaster personally to get the skinny on the muffs:thumbsup:

I am running Flowmaster 40 race 3" mufflers and have no drone at all. Personally I think they sound great, especially at idle. Do you plan to run an X pipe? That will make a huge difference in how it sounds also.

MagnaFlow or Hooker Aero Chamber. I do not like the Flowmaster marbles in a coffee can sound. The Flowmaster rattle. The Magnaflow is a much more "gentlemans hot Rod" sound.

We use Magnaflow on everything we build but did use the Aero Chambers on Michaels Monte Carlo and it does have a race car sound. he is 22 Years Old and thinks it is great!

Here are a couple videos of Magnaflow X pipe systems

We sell and install a lot of Magnaflow. We run Maganflow on everything. You cannot beat the price for a stainless system, and it has a true Gentlemans Hot Rod sounds.

Here is the A body 2 1/2" system, 3" look just like it.

http://i169.photobucket.com/albums/u212/ProdigyCustoms/MagnaflowChevelle15894.jpg

I recommend 2 1/2" up to 500HP., 3" over 500HP

Systems are in stock!

Here are 3 video clips. One is a litte 383 (prolly 500HP?) we built with a 3" Magnaflow X Pipe system, the other is the Back in Black car with a 450HP LS6 with a 2 1/2" Magnaflow X pipe system. The 3rd is Vegas69 650HP big block with 3" X Pipe and no tailpipes right now

I have the Back and Black car in my garage right now for some magazine photos shots. I was driving it yesterday and commented on how nice and mellow (but deep) the sound at cruise was. I am a stereo nut and really like comfortable cars. I cannot stand stupid loud exhaust.


http://i169.photobucket.com/albums/u212/ProdigyCustoms/th_MOV02446.jpg (http://s169.photobucket.com/albums/u212/ProdigyCustoms/?action=view&current=MOV02446.flv)
Russ 67, 383 SBC / 500HP?, 3" Magnaflow X Pipe system, ($650 and free shipping)

http://i169.photobucket.com/albums/u212/ProdigyCustoms/th_MOV03689.jpg (http://s169.photobucket.com/albums/u212/ProdigyCustoms/?action=view&current=MOV03689.flv)
Back in Black, LS6, 450HP, 2 1/2" magnaflow X Pipe system ($500 delivered)

http://i200.photobucket.com/albums/aa251/Payback1969/th_MVI_1254.jpg (http://s200.photobucket.com/albums/aa251/Payback1969/?action=view&current=MVI_1254.flv)
And here is our customer Vegas69 Badd Ass 650HP big Block with a 3" Magnaflow X Pipe system and dumps in front of the rear. Tailpipes will mute it a bit.

I have a single flowmaster 3" system on my daily driver 93 Suburban and I even get some interior drone with that. I have them before on other vehicles as well. To each his own, but next muffler I put on any vehicle will be either a dynomax, magnaflow, hooker etc but never again the drone of the flowmasters..just not my taste any more. You will get some interior drone, never been in a car that didnt if equpied with Flowmaster.

I tried to go with Magnaflow muffs but couldn't find a 3" offset/offset muffler that was shorter than 28"

Magnaflow makes a 18" Muffler in polished Stainless only that is 3" offset / offset, part number 14264, They are $120 each and we ship them free. We have them in stock

I had an American Thunder 2.5" with H pipe exiting turned down at the bumper like stock. 468 9.5:1. I had 40 Series, and they were too quiet! I am not a rowdy, my daily drivers are econobox wagons. But the 40's didn't do it for me. I put on Pypes Vilolators, which sound great at idle, but at WOT they are raspy and high pitch, kinda ricey. They are great performance, though, I can see right through them :yes:

2 words: hooker aerochamber
yes!!!!!!!!!!!!!!!!!!!!!!!!!!-I have these on my 67 427 car--and lets just say they sound like a big block sould-flowmasters have that tin can sound-hey,if your into that fine-but aerochambers are my favorites--course I run 4 inch with a x pipe-
rth 67rat

Magnaflow makes a 18" Muffler in polished Stainless only that is 3" offset / offset, part number 14264, They are $120 each and we ship them free. We have them in stock


Tried that one....its 24" total length....waaay to long to fit in that cavity on a Chevelle

I have a single flowmaster 3" system on my daily driver 93 Suburban and I even get some interior drone with that. I have them before on other vehicles as well. To each his own, but next muffler I put on any vehicle will be either a dynomax, magnaflow, hooker etc but never again the drone of the flowmasters..just not my taste any more. You will get some interior drone, never been in a car that didnt if equpied with Flowmaster.

I had the magnaflow 4x9x14 ovals true dual on my 67 deville and they were just like my flowmater 50 series on my chevelle. They both were moderate when idle but loud when you punched em and thats what I like.

If you want something quieter just go with a 70 series flowmaster and a maganaflow 5x11x22 would be the quitest, then they have 5x8x18. The only problem you will have with the two are the ground clearance issue and if they will fit side by side especially with the 5x11x22 without mods.

With that big of muffs you will still have some sound but now you have extra heat in the cab... So bro get rid of the 40's, I suggest the 50 series flowmasters or 4x9x14 magnaflow, they should both fit and sound really nice.

Remeber these are muscle cars, guys kill me when they say they want there Muscle car to sound like a vette or Lexus, or benz. Believe me those motors talk too but the difference is all of the aluminum insulation in the walls and floors. Now thats another option for you. I know guys who have sprayed bedliner underneath, and inside, and still dynomatted. To me thats a bit excessive, but if you got the doe go for it boss.:beers:

One more thing the cab in the 67 caddy would get hot due to the muffs sitting right between the front bench seat and rear bench seat.
So heat can be an issue too....

i started off with 2.5 inch in front of my axle i thought too loud, took it wall the out the back....HATED the sound, it sounded like an old picup truck, dumped the extension and went back to in front of the axle, i really missed the loudness, and decided i wanted louder and put 3 inch in front of the axle, louder, deeper, and way better i think i love them, but thats just me!!! oh yeah all these combos were with a 405 hp, 383

Here is a my car at Idle with 3" 40 series Race Flowmasters with x and tails. I have one doing a holeshot also if you want to hear it.

http://i254.photobucket.com/albums/hh119/jmartorana/th_MVI_7773.jpg (http://s254.photobucket.com/albums/hh119/jmartorana/?action=view&current=MVI_7773.flv)

Thanks for the info.--I have 42541 with no X pipe. What type do I have?

Today I had Flowmaster Super 44's installed and they sould a lot better--aggresive tone but not to loud inside of car. There still is a good WOT sound. Thanks for all the advise.

Today I had Flowmaster Super 44's installed and they sould a lot better--aggresive tone but not to loud inside of car. There still is a good WOT sound. Thanks for all the advise.

Now remember your cabin noise will be lower in comparison to the older cars due to your aluminum insulation.

Here is a my car at Idle with 3" 40 series Race Flowmasters with x and tails. I have one doing a holeshot also if you want to hear it.

http://i254.photobucket.com/albums/hh119/jmartorana/th_MVI_7773.jpg (http://s254.photobucket.com/albums/hh119/jmartorana/?action=view&current=MVI_7773.flv)

This car sounds totally pissed off, I love it. :cool: :thumbsup:

On my 396-325hp chevelle SS I have the delta force 40 series with the 2- 1/2"American Thunder pipes.I think it sounds great,and my car-nut friends say the same.The muscle car sound is there but not to loud.You can still talk to others while riding.My 70' Chevelle 454-450hp has the factory manifolds with the factory optional chambered exhaust.Different Story all together.Louder!

http://smileys.smileycentral.com/cat/36/36_5_11.gif (http://www.smileycentral.com/?partner=ZSzeb001_ZSman000)



http://www.smileycentral.com/sig.jsp?pc=ZSzeb096&pp=ZSman000 (http://smiley.smileycentral.com/download/index.jhtml?partner=ZSzeb096_ZSman000&utm_id=7924)

I'm a big fan of Borlas, which sound pretty similar to the Magnaflows -- quiet mellow rumble at idle, without any "metallic" or "tinny" overtones and throaty when you get on it.

The above is a good rep of the Flowmasters -- I find them a bit too metallic/raspy sounding and they have a tendency to drone/resonate at some RPM's. But they do make your car sound mean and pissed off :)

Nest bet is to go to a local cruise-night or similar, listen to a bunch of cars and ask folks what they have when you find something you like...

Hello Folks,

I've got two questions. Do those of you who experience noise, or drone, inside the car, have the mufflers clamped with solid metal clamps and bolted to the frame (metal to metal to metal)? What about the tail pipes. Are they also held in place the same way (metal tail pipes to metal clamps to metal frame)?

Thanks.

I'm running 3.5" pipes into 3" Flowmaster 53053 big block mufflers, then into 3" tailpipes. The sound is excellent and much quieter compared to 40 series and other 50 series mufflers. The only drawback is that these mufflers are huge, 5"x12"x22", 28 overall length. I can say though that the tailpipes made a big difference in the volme of the exhaust. I'm definitely a fan of Flowmasters. I think those videos of the other mufflers sound like a crotch rocket motorcycle when they rev them.

Mike

Hello Folks,

I've got two questions. Do those of you who experience noise, or drone, inside the car, have the mufflers clamped with solid metal clamps and bolted to the frame (metal to metal to metal)? What about the tail pipes. Are they also held in place the same way (metal tail pipes to metal clamps to metal frame)?

Thanks.

My hangers have rubber isolators on them. At 2700 (where I cruise) there is no drone at all.

Here is a my car at Idle with 3" 40 series Race Flowmasters with x and tails. I have one doing a holeshot also if you want to hear it.

http://i254.photobucket.com/albums/hh119/jmartorana/th_MVI_7773.jpg (http://s254.photobucket.com/albums/hh119/jmartorana/?action=view&current=MVI_7773.flv)

sounds great. the problem with most vid cameras and compression algorithms is that they either cant pick up, or they eliminate, most of the high frequency sound, which is what gives flowmasters their totally S^&%^y sound.

I used to be a sound specialist so maybe my hearing is more sensitive but everytime I hear a car with flowmasters coming I cringe.

Today I had Flowmaster Super 44's installed and they sould a lot better--aggresive tone but not to loud inside of car. There still is a good WOT sound. Thanks for all the advise.

give it a couple of weeks or so. It gets louder and nastier

Thanks for all the replys,can you imagine trying to get this much info before the internet,its a smaller world now....

[quote=ProdigyCustoms;2183337]MagnaFlow

Here is the A body 2 1/2" system, 3" look just like it.

http://i169.photobucket.com/albums/u212/ProdigyCustoms/MagnaflowChevelle15894.jpg

I recommend 2 1/2" up to 500HP., 3" over 500HP

Systems are in stock!
quote]

Prodigy, I need to extend the rear pipes to go over the rear end and exit out behind the rear tires and it looks like the pipes in top of pic in 3" can they be purchased seperately? What would be the part numbers I'm looking for.
Thanks Steven

George,Does your monte have the hooker aero chambers on it?? sounds real good...

None of the kit components are sold seperatly except the mufflers and X Pipe.

Sorry