It doesn't even have to be a knock-off. Look up the MAC Flowpath mufflers -The interior baffling if quite a bit different than Flowmaster and most say they sound better than the 40 series. I also think they are available in SS, something Flowmaster is not good about.

 

I say he wants it loud then run nothing. No manifold or anything. You will be the coolest guy on the street.

 

Till he melts all of the wiring under the hood and the truck catches on fire.

DOOOOO EEEETTT!

XD

 

Hey. The louder you are the cooler your are right?

Also everyone will be jealous that the flames on your hood are realistic looking.

 

I'm down. Prolly gonna pick up madd performance too. Our exhaust wont be low restriction, it will be NO restriction.

 

+1 on MAC, my friend had flow****ters on his mustang then switched to MACs and DAMN, such a beautiful sound echoed from the shop when we fired it up haha

 

Magnaflow, Flowmaster, Borla or Vortex (made by cherry bomb) sound good...

 

If you want it loud then run a hood stack and you might as well throw on some flame injectors while youre at it.

I have a new Bassani exhaust but havent put it on yet. Looking at the inside of the muffler it is a double flow through design.

 

Which would sound better with duals? super 44 or super 40 maybe remove one cat

 

X2. Flowmaster may sound good, but they're horrible for performance. Many see a lose of torque after just swapping mufflers (F150 site I'm on). Just how "free flowing" are they with their baffles that your exhaust has to work its way through. It's like a mouse trying to find its way through a maze to the cheese... Sort of. Any straight through muffler (Magnaflow, Dynomax Bullet, Borla, Corsa, ect.) will out perform it on the dyno.

It you want just sound, sure go with a Flowmaster, but if you want some performance as well... Hop off the bandwagon and go with something else.

 

lol, its funny how mis-information can be distributed... IF ANYTHING a restrictive exhaust will produce more back pressure (to a point) which in turn will produce more torque (to a point)

Think about it..

If you removed all 4 cats from a ranger it would be doggy in the low end because you free'd up too much restriction. Imagine if you bought the truck with no cats and decided to install the 4 cats again, it would seem much more peppy in the low end range.

So if a chambered muffler is "restrictive" it shouldnt have the "low-end loss". If anything, it is more free flowing than the OEM muffler, but not as free flowing as a straight through muffler.

Now im not saying a straight through muffler will net a "low-end loss", but theoretically it shouldnt really put as much of a gain in the low end as it would in the top end RPM Range.

 

gibson

 

For now i think i'm just gonna go with the muff i have now...see how it sounds...and save up for somethin else in the future

 

Loud is annoying. Get a Magnaflow or Borla. Those sound really good without giving you a headache from the resonation

 

go to this website: www.holley.com and click on the flowtech logo and click terminator mufflers. go with a single 3 inch inlet and dual 2.5 inch outlets muffler and install 6 inches behind cab with no tips or nothing. It will sound like an earthquake inside the cab with the windows up and set off FACTORY INSTALLED CAR ALARMS on certain makes and models. In fact with with the 4.0 it will sound even better. Mine is a 3.0 and it sounded like Paul Jr's green and black web bike off american chopper when I let off the gas. It will sound even better on a 4.0.

 

He'll learn with that muffler I just listed. I only changed it because I got tired of being deaf for an hour after I shut the motor off.

 

LMFAO! It is quite funny.





It has nothing to do with backpressure.

The lose of torque when people install Slowmasters is from a decrease in exhaust gas velocity.

In a good exhaust system, you want as little backpressure as possible with as high exhaust gas velocity as possible. Too many people think there is a connection between performance and backpressure, there is none.

 

From what I have heard on this site (video's and comments) Borla's are not that loud. Magnaflow is decent, and flowmaster is going to be by far the loudest of the three mufflers.

 

Of those three yes. That terminator muffler I had was way louder and deepr than even flowmaster's Super 40 muffler.

 

How can you have a decrease in exhaust gas velocity when you go from a stock muffler to a (2) chambered muffler?

Also, did you read what i wrote about the Cats...?

 

run the hooker u got, they actually sound REALLY good, ive run them on many different trucks....

 

Because your exhaust now has work/push it's way around and through those baffles, it lowers the exhaust gas velocity. Your muffler now becomes the "bottleneck" of the system.

Great example. Sorry I missed that.

Cutting all 4 cats and replacing them with straight pipes would remove a lot of restriction/backpressure. However, your exhaust gases have also lowered substantially. At this point you have very little backpressure and very low exhaust gas velcities. To remedy this, the exhaust pipe diameter would have to decrease a lot to bring up the exhaust gas velocities (and you'd also keep the low backpressure you had before).

 

Well what i am saying is the OEM mufflers do have chambers and baffles of sorts - If you replace it with a 2-chambered or even a 3 chambered it should "out-flow" the OEM muffler and net a gain, not a loss.

 

A buddy of mine has the exact truck you have with true dual empty glass packs, it dosn't pop at all and sounds like hes got a bigger engine than he really does. My flowmaster sounds really good, but i rep that 3.0