Originally Posted by MikeE92M3
Yes, I think I started a revolution. 1300 miles later, the exhaust sounds so mellow with virtually no drone at cruising speeds. Win.
I believe it.
The Nissan 350-370 crowd have been running them for years and they have a few aftermarket applications tailored with branch resonators.
I am not sure why a tuner hasnt stepped up to produce these for our cars. Something designed with carefully calculated sizes and lenghts (no offense to your math skills
Folks seem intent on welding straight through resonators in the Xpipe but branch resonators in the rear section is what really eliminates drone.