Two Sounds. One Exhaust.
Comfort when you want it. Mechanical fury when you open it up.
The Dilemma
Not just noise. It's engineering applied to sound.
The Solution
The Lettieri electronic valve mounts upstream of the silencer. Open, gases bypass the silencer and the engine breathes free — full sound, no filter. Closed, everything passes through the standard path — homologated, silent, civilized.
How It Works
1
Valve upstream of silencer
Positioned before the silencer, it diverts gas flow on command.
2
Cabin control
Wireless remote or dashboard button. One click, instant response.
3
Two characters, one signature
Street sound or racing sound. Always a Lettieri.
Perfect For
Track
Residential areas
Highway cruising
Track driving
Tunnel runs
Car meets