I just traded up from a 4.6 with a custom true dual 40 Delta Flows to a 5.4 FX2 with a nice tip. I just want to just switch my muffler to keep the tip and stock look. I know that the 5.4 already has more of an agressive sound purely based on displacement, so a muffler only switch should be just fine. I liked the 40series, but have read that others like magnaflow, etc may have more CFMs or a better sound. I don't want the cab to be super noisy, yet I want a deep "truck-sounding exhaust" even at a stand still. The 40s were not even audible until you hit the gas, then it was NICE! However, the one to fit is over $100 and I am trying to stay lower than that.

My questions are:

What is the stock 2007 5.4l muffler in-out dimestions?

What is the length of the stock muffler itself?

What is the best replacement muffler to get (Banks, Magna, Dynaflow, etc)?

 

No one will give me some ideas???

 

2.5" in/out

Stock length.. Crap i dunno way toooo long.. something like 40"

If you dont think your 40s were to loud then defentally have a 40 weled in place of your stock muffler..

I was going to suggest a magnaflow, but it seems like that would be to quite for you.

 

You could do an 18" Muffler 5 x 8 x 18 That WILL GIVE IT A DEEP THROATY TONE.

Here's the link
http://www.magnaflow.com/02product/s...ne=main&id=350

 

why would you want to keep the stock look? i think it would look pretty sweet if you had some pipes coming out the side before the tire on your truck. i forget what it's called though.

 

yeah you could put in a 40 series in the stock mufflers place, and get a little more of 2.5" piping to weld and run it with the stock tip.

 

Does anyone have a sound clip of this setup (flow 40 series replacement). I plan on just adding a muffler but I want to hear some clips of this setup first. Ive heard the one son flowmaster's website.

 

That's the route I took....After going with a 5x8x24", stepped up to the 18" si/do and WOW.

 

Does anyone have any sound clips of muffler only replacement Im stuck on magnaflow or flowmaster 40 or 50 series.