Im thinking about taking the muffler and tail pipe off my 2004 f150 5.4L and use where the muffler connected as a y pipe and run dual exhaust out each side of the hitch with no muffler. My dads friend has an exhaust bender and he said he will do it, so it would save me so much money. And I would still be able to add a muffler later if I wanted it quieter. Has anyone done this and how do you think it will sound?

 

ive heard a lot of them and 5.4s sound very good with a y-pipe in place of the muffler. search on youtube for it.

 

Keep a muffler on it..

 

Mufflers suck, mine is true duals straights. Its really loud but I like the sound.

 

I've got a cut out which is the same thing as straights and it's not really that loud. It's really deep and gargled which I LOVE about it.

 

Our trucks aren't that loud with straights. If you tow a lot of fairly heavy trailers you might want to think about a muffler. I tow a 10' trailer with a atv on it all over the place and it is no problem. I got 16mpg last weekend on a trip to Ky and back. I think this is great for a V8 4X4 with over 100,000 miles on it. If I hook to the 18'er with 4 atv's I notice a lot of noise. A long trip gets a little tough on the ears with the motor tacked up. If you want the straights try it out. Like you said, if it's too much you can always add a muffler later.
Rich

 

True dual straight pipes will be louder and deeper than Y-piped straights...


I have true dual straights on my 2V 5.4 and absolutely love the sound!

 

i had dual exhaust with the Y pipe and no muffler, it sounds great!

now i have true duals with no muffler and it is louder.

 

It sounds like you can just buy & install the bolt on system that I have. A straight pipe & a y pipe, leading to glasspacks. It sounds great. A nice, low, mellow rumble.

 

I have just the stock single exhaust on my 5.4 04, sounds good, not that loud

 

Where did you find this kit? Thats exactly what Im thinking about doing. What are true duals vs y? And would a flowmaster 44 series or 50 series sound better? I want it deep sounding

 

Thats the Heartthrob cat-back. True duals will be louder, a real dual rumble. Y piped straights just adds you the tips on a single exhaust. I would definitely suggest the super 44, great sounding muffler, 50 series is a bit quieter but gives an incredible sound too.

 

My 05 4.2l has true duals with flowtech redhot glasspacks 2.5" and is louder than every 4.6l or 5.4l I've ever heard at wide open throttle but it's too loud honestly, lol. Now I want to do that to my new 08 5.4l but I think I'm just going to do a magnaflow exhuast. Of course I'm going to do headers back including hi flow cats to eliminate the back pressure which a true dual setup has a lot of especially on my 4.2l

 

The HeartThrob kit has given me a low, deep, mellow rumble at idle; and just roars to life with an increase in RPMs.

 

i have no muffler or rear cats and dumped my exhaust where muffler was... it does sound good but the cab noise is getting on my nerves now.... im going to get a super 44 and exit out in front of rear passanger wheel....