Mufflers

84convertablegt · May 5, 2005

ron67fb said:
Those four factory cats might have something to do with that. My '86 has 2 chamber flowmasters and it's quiet. When my '67 had 2 chambers I had a migraine after every drive.

That definately had something to do with it, but after i put on 2 chamber flowmasters, it was perfect. not too loud, but sounded how it should to me.

Alarus · May 6, 2005

so if i put flows on my car what will it sound like? loud, mello, quiet?(i know its kinda hard to describe a sound) and will i get any hp boost and how much? (1-5)(5-10)?

geostang351 · May 8, 2005

It depends. i have flows 2 chamber and they are a little loud. The car sounds cool but after about 1/2 it gets a little loud and annoying. I wish i had 3 chambers. Same rumble, just quieter.

FasterThenU72 · May 8, 2005

if you put flowmasters on, your gonna sound like everyone else runnin around on the street, all your gonna have is that same boring drone of a flowmaster.......

69Rcode_Mach1 · May 8, 2005

I agree with Fasterthanu, you will sound decent and then when you pull up to a light and some beat up rusted out chevy truck revs at you, you will realize why we are saying this. It is just way too common.

69Mach351 · May 8, 2005

I got three chamber flowmasters (50 series) and like them, there is a noticable drone like most people say. It does sound good though. One muffler i would like to hear on a stang is the hooker areochamber. I had it on my TA and it was low and noticably louder than stock but quiet enough for everyday. Def. louder at WOT as well.

Crs · May 8, 2005

3 Chamber Flowmasters have a happy medium sound that wont irritate you after a while. I will soon be replacing my 2 Chamber Flows with Dynomax Turbos or Spintechs.

67FBSCODE · May 8, 2005

I like my Hooker Areo Chambers with X pipe. It doesn't have the drone the Flowmasters do.

Max Power · May 8, 2005

Keep in mind the engine has a huge effect on how mufflers sound. A stock 302-2V isn't going to be as loud through Flows as a high compression, big displacement cammed motor.

Alarus · May 8, 2005

again i ask, is it worth it to put duel flows on it, what will i gain (any hp, mpg)

65Mustang2+2 · May 8, 2005

I got my Flowmaster 40 for $125 new in the box on Ebay! Brought them to a muffler shop and had them welded on! Sound good, not to loud due to I dont have headers! So they sound real nice and my car seems to run cooler and a little better! Not bad for under $200 installed.

Alarus · May 8, 2005

that still dosnt anser my question :'( and wait a min...you dont have headers?!?!dont they go from the manifold to the exhaust pipe....????

A67auto · May 8, 2005

I have a set of Dynomax..or are they mangna flows? I know that when I got them you could see straight thru them. They are not too loud, but have a nice "Rasp" when you get on it. I also like how the new mustang stock system sounds.

FasterThenU72 · May 8, 2005

oops haha poor guy, forgot all about your question, anyways, i dont think youll get to noticeable of a gain unless you do a complete system upgrade, not just mufflers......i say again noticable, you will gain somethin, but not much...

Max Power · May 8, 2005

Alarus said:
again i ask, is it worth it to put duel flows on it, what will i gain (any hp, mpg)

Just about anytime you put duals on in place of a factory single system, you will see some gains.

In your case, not that much. An engine is a vacuum pump, and you are only opening one end.

Does that answer your question?

blown65 · May 8, 2005

lol, after the guy at work with the flows, I sure wouldnt own a set. He hated them after he got them also.

Personally they best tone wise IMO were the spin-techs. Not sure what ones the guy was running but they just sounded bad ass.

84convertablegt · May 8, 2005

exactly, an engine is a vacuum pump. if you open up the intake and exhaust it will do wonders for you. thats why headers also make such a big difference. but just replacing mufflers wont do too much, it may feel just a little better. but if you replace the whole stock exhaust you will feel a difference and obviously hear a difference. if i were you, id wait and do it right. i did the whole system at once. tri y headers, 2.5" piping to 2.5" flowmasters, into dumps. that is a loud combo, especially with the cam in my motor. maybe too loud, but im happy with it. i couldnt handle it as a daily driver, but its not, its a weekend cruiser or cruise in car. so i think its appropriate. the difference between my car and an old chevy truck is that mine is actually fast, it isnt just loud and obnoxious.

EDIT: Here is what my car sounds like, excuse the belt slippage. i was having some aluminum pulley issues.
http://www.protoworks.com/Mustang/HomeAgain/sounds/65idleandrev.wav

Alarus · May 9, 2005

ok that helps, so i take it that flows will make the car loud? i dont have a good speaker sys. on my comp so i couldnt really hear that too well. wouldnt sound that true anyway, alot of distortion from real to comp to real...anyway you told me id only be opening up one end, how would i open the other (at low cost) and what would all the advantages be?

84convertablegt · May 9, 2005

The best way is to get an aftermarket intake. do u still have the factory 2bbl carb and intake? if so, an aftermarket edelbrock intake or weiand intake and a 4bbl carb is the best way without getting into expensive head mods and such. Id recommend a edelbrock rpm or weiand stealth manifold and a holley 4160 600cfm or edelbrock 500 cfm carb for pretty much stock applications. these will let u keep most if not all of the low end and and also flow much more in the high side. The intake will run around 150 dollars and the carb will be around 300 new, less if used. this combined with headers and full exhaust will give you noticable results and is the best bang for the buck mod imo next to rear end gears.

Alarus · May 9, 2005

i beleave that its the stock intake but it has a 2 bbl holly on it (not shure on modle/size, it was on there before i got the car) right now im going more tords edelbrock...my holly gives me too many probs. (wont stay tuned) ill have it so i can roast the tires one day and the next it will just give me fits, i change the a/f and it works just fine...

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