Mustangs Set For Mac
Had the 2.5' macs on my 2004 GT, they were way too loud and resonated all the time, going up hill meant I couldn't hear the radio or passengers, any press of the accellerater pedal and all discussions stopped, needless to say you really didn't talk while driving the car. I squeezed the FlowMaster Delta 50s in trying to change the frequency. Still loud although better and definitely sound better, still resonate under load through 5th gear then a nice cruising sound until between 70 and 76mph. Drone again, then a nice cruising sound again.
Macs Ford Mustang Parts
Trying the LMII next, someone said there is less cabin noise / drone with those since they are straight through. I installed a good bit of mat to deaden the drone and super loud exhaust, it didn't help much with the macs so I am slowly trying others.