String Theory Garage will be closed to the public from Wednesday, 29th July to Thursday, 6th August for our annual shutdown.
If you need to get in touch, please leave us a voicemail or send an email. Our team will happily get back to you when we return on Friday, 7th August.
Shopping online? Don't worry! Our online store will remain active! We hope to ship orders placed for in-stock items as normal during the shutdown. Anything else will be dealt with upon our return.
Thank you for your understanding, String Theory Garage Team
TheAkrapovič dB Reducer (Titanium)is engineered forPorsche 911 GT3andGT3 RSmodels, providing a solution for drivers looking to keep exhaust noise levels within approved limits during track days. Constructed from high-grade lightweight titanium, this precision-engineered accessory acts as an additional muffler, expanding exhaust gases further to effectively lower sound levels.
The dB reducer is easy to install, replacing the Akrapovič tailpipe set with minimal effort. Once in place, it reduces dynamic sound levels by approximately 2–3 decibels* without sacrificing the distinctive Akrapovič sound and performance. Its design seamlessly integrates with all Akrapovič exhaust systems for the Porsche 911 GT3 and GT3 RS, including:
Slip-On Line (Titanium)
Evolution Line (Titanium)
Sports Cup Line (Titanium)
Evolution Race Line (Titanium)
Compatible Models:
Porsche 911 GT3 (991.1)– 2014–2017
Porsche 911 GT3 / GT3 Touring (991.2)– 2018–2019
Porsche 911 GT3 / GT3 Touring (992.1)– 2021–2024
Porsche 911 GT3 RS (991.1)– 2014–2017
Porsche 911 GT3 RS (991.2)– 2018–2020
Porsche 911 GT3 RS / S/T (992.1)– 2022–2025
Also fits stock exhaust systems for the Porsche 911 GT3 (992.1) and GT3 RS (992.1).