Does anyone in Alberta Canada have a gently used 4" stock exhaust system from a high output 3rd gen, that isn't chopped to peices. I keep hearing that the MBRP is loud when towing, and I don't want the kids puking because of excessive drone in the cabin. I don't need the exhaust for EGT's yet, but I know I will eventually. I may go with the MBRP in the end anyway, but it never hurts to look. Anyone have any leftovers.

 

you need to specify year.. my 04 ho has the same exhaust as your 03 so... if you want the 4" stuff, the 04.5 and 05 will fit the bill, but the exhaust elbow is needed to be changed to make the DP bolt up [3.5" elbow to 4" elbow]

i was going to mod the stock pipes, but then i started to think, that i eventually would get aftermarket pipes, so i bit the bullet and got the aftermarket stuff instead. [i went with BD's 5" system]

 

Yeper, that's what I want to do. With a Pack or Jake Brake. Do you tow with your truck. How is the cabin drone with that 5". Keep it cummin!!!