does anyone know how this will sound? and will i loose any tq or hp? i have been reading for a long time and can't come up with an answer, so i thought i'd just ask.

 

I just had the Flowmaster DF 50 SI/DO installed on my truck (02 F150 4.2L). I also installed the MAC air intake at the same time. I have noticed better throttle response and more pickup from 30mph to 60mph. If I lost any low end torque I haven't noticed. If that is your only concern, don't be scared.

John

 

what about sound? i am not lookin for somethin really loud, just noticable with a nice sound.

 

LilBuddy
I have the FM50 SI/DO it has a good tone
with out being loud. If you have a auto trans
you will loss a little low end torque but
not bad.
Paul

 

You will hear the exhaust, it is not quite, but not too loud. Don't expect it to sound like a V8...

 

somone on the other site is reccomending a gibson, so will a 50 series non delta flow sound better than a delta flow 50? i am so confused on this stuff.

 

The DF is designed to keep the cab noise down, you definitely want a DF.

 

i called flowmaster and the guy reccomended either the 50 series DF or the 50 series SUV, said the SUV would take out some of the V6 sound. anyone have any opinions on this?

 

Howdy...

As the previous owner of a 4.2L, I can say if you want sound, DON'T DO IT! A 4.2L sounds like an import truck as you wind it up with a load on it, and pretty raspy with a flowmaster. Don't get me wrong- the 4.2L is plenty of engine, but due to it's particular breathing layout, it sounds very vee-sixy with a free-flowing muffler. If you want performance, but close to stock sound, try a longer magnaflow or perhaps a dynomax super turbo. But for sound, I'd definitely keep it down- it just sounds thin.

Good luck!
Noel