hey guys,
my buddy has a 04 f150 5.4L 3valve
I recently just put true dual exhaust on my buddies truck it was 2.25" pipe we cut the y pipe apart and put true dual on and then put a x pipe shortly past where the y pipe use to be. The exhaust was then ran all the way back and exited the truck at 45s with 3.5x18" tips.
I am confused on how quite the truck is, there is no muffler and it is no louder than my old exhaust which the muffler was just cut out.
Did the x pipe really take all the sound away? i was expecting a rap and deep rumble not a truck that had a muffler on it sound..
let me know what you think i should do to make it louder while still keeping perfomance on mind.
thanks

 

that truck has 4 converters...start removing!

EDIT: take out the back ones on each side

 

Bingo to f150fella08, i'm removing my 2 rear cats in the next month or so so mine rumbles a little more with my flomaster... just waiting for a nice day

 

Thanks for the replys. IF i remove the rear cats will my check engine light come on? or cause me any problems?
Thanks

 

no because they do not have O2 Snesors so the check engin light should not come on or at least thats what my machanic said

 

4 cats are very quiet!

 

the rear cats arent monitored..just the front ones..you will be fine with running just the front 2 if you decide to remove the rear ones.

if thats not loud enough then replace all 4 with just 2 high flow converters.

 

Thanks guys.. I removed the 2 rear cats and it sounds awesome..

 

Good job. Definitely a good DIY exhaust modification for volume.

 

I have a 2000 ford lightning and need to know what is the best peforming and sounding exhaust

 

True dual 2.5" with X pipe and straight threw mufflers like Borla and magnaflow!

 

I used to have a 2002 F-150 4.6 with 2.25" running pipe with 3.5" by 18" tips. I had true duals and I'll admit no matter where I went it or what I did was always turning heads and it would set off car alarms on occasion. There again I didn't have an x-pipe.

 

Daddys55..I would suggest Flowmaster 10 series..Some places will even tell you that Flowmaster doesnt make them..But they are a one chamber muffler and sound amazing

 

Yes!

 

Flowmaster is out!
He said...