i just redid my exhaust today had a flowmaster 40 SIDO installed, and they repleaced the pipe before the muffler to the Y pipe with a 3 or 3.5" pipe i cant rember... with 5.5 inch rolled tips i just got home and its like 1 in the momrning so ill take some pics tommrow looks and sounds awesome
best tone i could ask for

 

How did the performance hold up... Any low end power loss as the folks say about the flowmaster and 4.6 on the forums?? Just curious incase I want to get loud again!! I've had flow's in the past on other trucks.. love the loudness...

***edit: I would think the bigger pipes would cause low end loss too, no?? thats alot of exhaust going out, what kinda air intake/MAF set up are you running??

 

The stock flow tube (that pipe before the muffler) is 3" Dia. Don't worry about much from a performance perspective...a catback on these trucks makes very little difference. I have friends run with just a straight pipe where the muffler was and they don't sound much different from my Flomaster SIDO setup.



When my full length headers and offroad y-pipe comes in though...

 

actuallly i cant tell a difference in any low end power i actually think it might be a little better i even only have a k&n drop in but soon i get a K&N im at the car wash place getting my truck all cleaned up so i can take some pics for you guys

 

got em to add extra mounts so when i go offroading it wont jiggling around

 

Look at that weld on the hangar! Glad you're happy with the Flowmaster...I love mine. Now I've just gotta do something about those pesky cats..

 

Gotta love the Flows! Those look great!