Need some advice...I have an 07 FX4 SuperCrew 5.4 I am looking into a cat back system. I would like to hear a little rumble, not to loud, not to soft.... but still maintain a quite ride while at speed. Any suggestion????

Thanks in advanced.

 

i think 18" magnaflow would suit you well. instead of getting a cat-back its cheaper to get the muffler and tips of your choice and have a shop put them on. will save you about $100.

heres a si/do
http://www.jegs.com/i/Magnaflow/642/12267/10002/-1

 

14" Body SI/DO Magnaflow

 

x2, 14" will give you a little more sound and rumble than the 18"

 

whichever the magnaflow si/so system comes with does exactly what your looking for

 

x3!