Lamborghini Murcielago Replica Exhaust Sound Experiment with XR 1 Muffler on V6 Fiero Reventon

, If videos about exhaust sounds bore you, this isn t the video for you In this video, we just completed installation of a Borla XR1 racing muffler. The car previously had a Borla ProXS with catalytic converter. The sound is now much louder and more aggressive. Just for kicks, I attached a Cherry Bomb Glass Pack after the XR1 to find out how the sound changes. I also tried the same experiment with a Pilot Motorsports exhaust tip, an OBX Twin Loop muffle