Loud but legal.
Valvetronic exhaust systems for BMW M, Audi RS, AMG, Porsche and US Muscle. ECE type-approved, Swiss declaration of conformity included.
Official GRAIL Partner Switzerland
GRAIL Valvetronic Exhaust System for Dodge Durango 6.2 Hellcat
GRAIL valved exhaust system for the Dodge Durango 6.2 Hellcat, including Swiss declaration of conformity. Valve control via the vehicle's factory ...
View full details
GRAIL Valvetronic Exhaust System for Dodge RAM 1500 TRX
GRAIL valved exhaust system for the Dodge RAM 1500 TRX, including Swiss declaration of conformity. Valve control via the vehicle's factory electro...
View full details
GRAIL Valvetronic Exhaust System for Dodge Durango 5.7 R/T
GRAIL valved exhaust system for the Dodge Durango 5.7 R/T, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
View full details
GRAIL Valvetronic Exhaust System for Dodge RAM 1500 5th Gen DT V8 5.7 Hemi (2019-2024)
GRAIL valved exhaust system for the Dodge RAM 1500 Gen. 5 DT V8 5.7 Hemi (2019-2024), including Swiss declaration of conformity. Valve control via...
View full details
GRAIL Valvetronic Exhaust System for Dodge Durango 6.4 SRT
GRAIL valved exhaust system for the Dodge Durango 6.4 SRT, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
View full details
GRAIL Center-Pivot Exhaust System for Abarth 595 (Fiat 500)
GRAIL valve exhaust system for the Abarth 595 (Fiat 500), including Swiss declaration of conformity. Valve control via the vehicle's standard elec...
View full details
GRAIL Valvetronic Exhaust System for Nissan GT-R R35 FL (from 2017)
GRAIL valved exhaust system for the Nissan GT-R R35 FL (from 2017 onwards), including Swiss declaration of conformity. Valve control via the vehic...
View full details
GRAIL Valvetronic Exhaust System for Nissan GT-R R35 VFL (2007-2017)
GRAIL valved exhaust system for the Nissan GT-R R35 VFL (2007-2017), including Swiss declaration of conformity. Valve control via the vehicle's fa...
View full details
GRAIL Valvetronic exhaust system without OPF for MINI Cooper S+ JCW F5x
GRAIL valve exhaust system for the MINI Cooper S+ JCW F5x, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
View full details
GRAIL valvetronic exhaust system for Nissan 370Z Coupe / Roadster
GRAIL valve exhaust system for the Nissan 370Z Coupe / Roadster, including Swiss declaration of conformity. Valve control via the vehicle's factor...
View full details
GRAIL Valvetronic exhaust system from OPF for MINI Cooper S+ JCW F5x
GRAIL valve exhaust system for the MINI Cooper S+ JCW F5x, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
View full details
GRAIL Valvetronic Exhaust System for Alfa Romeo Giulia Quadrifoglio
GRAIL valve exhaust system for the Alfa Romeo Giulia Quadrifoglio, including Swiss declaration of conformity. Valve control via the vehicle's fact...
View full details
GRAIL Valvetronic Exhaust System for Nissan 370Z Nismo
GRAIL valve exhaust system for the Nissan 370Z Nismo, including Swiss declaration of conformity. Valve control via the vehicle's factory electroni...
View full details
GRAIL Flap Exhaust System for Porsche 911 GT3 RS (991.1)
GRAIL valve exhaust system for the Porsche 911 GT3 RS (991.1), including Swiss declaration of conformity. Valve control via the vehicle's factory ...
View full details
GRAIL Flap Exhaust System for Porsche 718 Cayman GT4/GTS
GRAIL valve exhaust system for the Porsche 718 Cayman GT4/GTS, including Swiss declaration of conformity. Valve control via the vehicle's factory ...
View full details
GRAIL Flap Exhaust System for Porsche 911 GT3 (991.2)
GRAIL valve exhaust system for the Porsche 911 GT3 (991.2), including Swiss declaration of conformity. Valve control via the vehicle's factory ele...
View full details
GRAIL Valvetronic Exhaust System for Porsche 718 Cayman GT4 RS & Spyder
GRAIL valve exhaust system for the Porsche 718 Cayman GT4 RS & Spyder, including Swiss declaration of conformity. Valve control via the vehicl...
View full details
GRAIL Flap Exhaust System for Porsche 911 GT3 RS (991.2)
GRAIL valve exhaust system for the Porsche 911 GT3 RS (991.2), including Swiss declaration of conformity. Valve control via the vehicle's factory ...
View full details
GRAIL Flap Exhaust System for Porsche 992 Turbo / Turbo S
GRAIL valve exhaust system for the Porsche 992 Turbo / Turbo S, including Swiss declaration of conformity. Valve control via the vehicle's factory...
View full details
GRAIL Flap Exhaust System for Porsche 911 GT3 (991.1)
GRAIL valve exhaust system for the Porsche 911 GT3 (991.1), including Swiss declaration of conformity. Valve control via the vehicle's factory ele...
View full details
GRAIL Valvetronic Exhaust System for Porsche 992 4S
GRAIL valve exhaust system for the Porsche 992 4S, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics ...
View full details
GRAIL Valvetronic Exhaust System for Porsche 992 GT3 RS
GRAIL valve exhaust system for the Porsche 992 GT3 RS, including Swiss declaration of conformity. Valve control via the vehicle's factory electron...
View full details
GRAIL valve exhaust system for Porsche 992 GT3
GRAIL valve exhaust system for the Porsche 992 GT3, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics...
View full details
GRAIL Center-Exit Exhaust System for Toyota Yaris GR VFL
GRAIL valve exhaust system for the Toyota Yaris GR VFL, including Swiss declaration of conformity. Valve control via the vehicle's factory electro...
View full details