is the Flowmaster 40 Series a good idea for my2004 4Door V6???

 

Absolutely, I have one on my 1997 (same engine) and I love it!

 

i want a deep tone with little inside noise..is it still a good idea???

 

i got em on my vette and it wakes up the neighbors 5 blocks away, lol love them

Edit: Onlything is they're not stainless steel so keep in mind they will rust eventualy

 

I have them on my Blazer. They are awesome. Great sound.

It is better to have the muffler within 1 foot of the cat with the 40's, don't know why but if you mount it there and put 2.5inch pipe after it is great. You can expect the peak sound and tone around 2400 RPMs when its cold and around 25-2600 when its hot.

I would reccommend going withthe newSuper 44 if you want to get maximum sound.

 

how much can i find a Super 40 for???

 

GOOGLE is your friend!