just wondering if any one is running the dyno max si\do cat back system?
would i lose or gain any low end torqe with this system?
i think it's 2.5 in and 2.5 dual out with 3'' tips..... my exuast dealer is in love with this system for the 04-08 trucks.thanx
5.4L

 

i just checked and it's 2.5 in 3'' out , ultra flow muffler..
if anyone has this system , do you like the sound / performance?

 

I wouldn't get it. Buy the muffler and tips you want, then have a decent shop bend and weld the pipes for a fraction of the cost.

Performance wise, it shouldn't be effected at all because the stock inlet pipes are 2.5. You won't feel any differences until you bump the whole system up to 3 inches.

 

thanx punisher....anyone else have opinions???

 

i agree with 4.6punisher

 

^ yup