So me and my buddy have the 2014 is250 awd and we decided to take out our secondary cats and replace stock mufflers with magna flow mufflers and some new shinny tips. The only problem is the car is still pretty quiet. We have a new build idea.... Before we do this we wanted to get everyones opinion on what they thought.


So right after primary cats replace all the piping right up to the mufflers at 2.5 stainless steel with an x pipe in the middle from SSK speed. Basically a full catback. just want everyones opinion thanks!