4 inch or 5inch

[lincolnlocker]

http://www.youtube.com/watch?v=HefRmikP41Q..... complements of cat rebel..... my truck last summer

 

[Dmstrucks02]

Another vote for 5" here

 

[02BigD]

http://www.youtube.com/watch?v=O4SFJhv1ZKk

5" dp back and headers.