I think a lot of people are confused with a muffler delete versus a full axleback exhaust. The muffler delete (single and dual) is there to "delete" the muffler in order to save weight and increase sound decibels for increased levels of driving sensation. We love the muffler delete and we're the ones who helped provide test feedback for Berk. A well-designed axleback exhaust will have some chambers or resonators to reduce the resonant frequencies like drone and improve quality of sound, both for the occupants and for your outside peers.
Currently, we're still in R&D phase with Berk's prototype axleback exhaust. We have gotten a ton of compliments and drooling from FRS/BRZ owners on the street and on the track. Thank you for being patient with us and Berk. We're doing our best to provide you a great axleback exhaust! As always, Berk's products are always dyno proven and track tested.
