The Sound of the Porsche 992 GT3 with Lettieri Exhaust
By Fausto Lettieri·March 17, 2026
The Perfect Sound
When a customer asked us to create an exhaust system for his Porsche 992 GT3, we knew the challenge was enormous. The GT3's flat-six is already a symphony, but we wanted to take it to the next level.
The Challenge
The 992 GT3's 4.0-liter engine produces a naturally satisfying sound, but the original exhaust system is designed to comply with increasingly stringent regulations. Our goal was to unleash that voice, without sacrificing anything.
The Solution
We developed a complete system featuring:
3-in-1 headers with 200-cell sport catalysts in AISI 304 stainless steel
Fully bypassable silencer with premium electronic valves
76mm tubes like those of the GT3 Cup
110mm tips in black chrome with logo engraving
The Result
128 dB in open mode, 97 dB in comfort mode. The best of both worlds.