My little bros b day is coming up and I was wanting to buy a 7" tip for his 06 dually. I have searched on here and on google but still with no luck. His truck still has the 4" factory exhaust on it so Im gonna need a 4" inlet but want a 7" outlet. Any help would be appreciated!

 

i have never seen 4"in 7" out tip. could be wrong. but most are 5-7

 

Yep good luck finding a 4" to 7" they are spendy you have to pretty much buy a semi stack!! 5" to 7" is the norm..... 6" x 4" tips are easily found...

 

Find a Grand Rock exhaust dealer. Order a chrome 24 inch long 7 inch reduced to 5 inch Slash cut top stack and a chrome 5 inch to 4 inch reducer. You will also need a 5 inch diameter and a 4 inch diameter stainless steel exhaust band clamp. I got all my stuff from Berubes in New Hampshire. I called them up and told them what I wanted to do and they hooked me up. Nice people.
www.berubes.com