Magnaflow size Questions 5"x8" or 4"x9" 14" or 18"

[Minivek]

I'm looking to buy a new muffler, Magnaflow is the the brand I'll get but
I was wondering which one to get.

4"x9" or 5"x8" will both sizes fit under my truck?? It's a 2003 4.6 4dr Limited explorer.

Also which length should I get 14" or 18" ??? Is the 14" going to rattle loose my headliner or will it be ok??

I don't mind it loud outside, I just don't want a massive drone and I definitely don't want a stock sound


Thanks for opinions.

 

[Minivek]

Anyone??

 

[Minivek]

Don't be shy now

 

[IZwack]

Go with the biggest that fits.

 

[Cozmik]

I'm actually looking at a Manaflow for my 05 4.6 so I'm going to keep my eye on this thread.

IZwack, why do you recommend going with the biggest that fits? (I'm new to performance exhaust)