I've been recently looking for an exhaust for my '04 Lariat. Been hoping to get the best torque/horsepower increase I can. I keep hearing a lot about Magnaflow but can't find anything about them performance-wise. Out of all the exhaust I looked at(Flowmasters, Gibson, etc.) Magnaflows sounded the best, IMO. Didn't sound too choppy or too loud, just need to know about how they do with torque. Any help?

 

do a search on here for magnaflow articles or maybe go to troyer's site, they did an article on magnaflow saying it was one of the only setups that increased tq and hp.

 

Go to Mag's site. They have charts. For the 04+ trucks, it's +14 HP & 23 TQ, or very close.