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 BMW X4 M40i B58 G02 (2018-2024)
GRAIL valve exhaust system for the BMW X4 M40i B58 G02 (2018-2024), including Swiss declaration of conformity. Valve control via the vehicle's fac...
View full details
GRAIL Valvetronic Exhaust System for Ford Mustang Gen. 7 5.0 GT V8 S650 (from 2024, EU)
GRAIL valved exhaust system for the Ford Mustang Gen. 7 5.0 GT V8 S650 (from 2024, EU), including Swiss declaration of conformity. Valve control v...
View full details
GRAIL 3-inch valved exhaust system for BMW M2 Competition F87
GRAIL valve exhaust system for the BMW M2 Competition F87, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
View full details
GRAIL Valvetronic Exhaust System for Audi TTS (8S/FV) Coupe
GRAIL valve exhaust system for the Audi TTS (8S/FV) Coupe, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
View full details
GRAIL Valvetronic Exhaust System for Ford Mustang Gen. 6 Ecoboost 2.3T (2014-2020, EU)
GRAIL valved exhaust system for the Ford Mustang Gen. 6 Ecoboost 2.3T (2014-2020, EU), including Swiss declaration of conformity. Valve control vi...
View full details
GRAIL Valvetronic Exhaust System for Ford Mustang 5.0 MACH 1 Gen. 6 S550 FL Coupe (2018-2024, US)
GRAIL valved exhaust system for the Ford Mustang 5.0 MACH 1 Gen. 6 S550 FL Coupe (2018-2024, US), including Swiss declaration of conformity. Valve...
View full details
GRAIL Valvetronic Exhaust System for Audi S4 (B9)
GRAIL valve exhaust system for the Audi S4 (B9), including Swiss declaration of conformity. Valve control via the vehicle's factory electronics E...
View full details
GRAIL Valvetronic Exhaust System for SEAT Leon Cupra ST 333 hp (KL)
GRAIL valve exhaust system for the SEAT Leon Cupra ST with 333 hp (KL), including Swiss declaration of conformity. Valve control via the vehicle's...
View full details
GRAIL Valvetronic Exhaust System for Dodge RAM 1500 R6 High Output 3.0 (2024+)
GRAIL valved exhaust system for the Dodge RAM 1500 R6 High Output 3.0 (2024+), including Swiss declaration of conformity. Valve control via the ve...
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 Ford Mustang 5.0 GT V8 / Bullitt Gen. 6 S550 FL (2018-2024, US)
GRAIL Valvetronic Exhaust System for Ford Mustang 5.0 GT V8 / Bullitt Gen. 6 S550 FL (2018-2024, US)
GRAIL valved exhaust system for the Ford Mustang 5.0 GT V8 / Bullitt Gen. 6 S550 FL (2018-2024, US), including Swiss declaration of conformity. Va...
View full details
GRAIL Valvetronic Exhaust System for Dodge Charger 5.7 Hemi (from 2021)
GRAIL valved exhaust system for the Dodge Charger 5.7 Hemi (from 2021 onwards), including Swiss declaration of conformity. Valve control via the v...
View full details
GRAIL Valvetronic Exhaust System for Audi TTS (8S/FV) Roadster
GRAIL valve exhaust system for the Audi TTS (8S/FV) Roadster, including Swiss declaration of conformity. Valve control via the vehicle's factory e...
View full details
GRAIL Valvetronic Exhaust System for Mercedes-Benz CLS 500 4.7 218 (2011-2017)
GRAIL valved exhaust system for the Mercedes-Benz CLS 500 4.7 218 (2011-2017), including Swiss declaration of conformity. Valve control via the ve...
View full details
GRAIL Valvetronic Exhaust System for Mercedes-Benz E 500 4.7 212 (2011-2017)
GRAIL valve exhaust system for the Mercedes-Benz E 500 4.7 212 (2011-2017), including Swiss declaration of conformity. Valve control via the vehic...
View full details
GRAIL Valvetronic Exhaust System for Audi A5 F5 45 TFSI (195 kW, 2020-2024)
GRAIL valved exhaust system for the Audi A5 F5 45 TFSI (195 kW, 2020-2024), including Swiss declaration of conformity. Valve control via the vehic...
View full details
GRAIL Valvetronic Exhaust System for Audi A5 F5 40 TFSI (150 kW, 2020-2024)
GRAIL valve exhaust system for the Audi A5 F5 40 TFSI (150 kW, 2020-2024), including Swiss declaration of conformity. Valve control via the vehicl...
View full details
GRAIL Valvetronic Exhaust System for Audi A4 B9 45 TFSI (195 kW, 2020-2024)
GRAIL valved exhaust system for the Audi A4 B9 45 TFSI (195 kW, 2020-2024), including Swiss declaration of conformity. Valve control via the vehic...
View full details
GRAIL Valvetronic Exhaust System for Audi A4 B9 40 TFSI (150 kW, 2020-2024)
GRAIL valved exhaust system for the Audi A4 B9 40 TFSI (150 kW, 2020-2024), including Swiss declaration of conformity. Valve control via the vehic...
View full details
GRAIL Valvetronic Exhaust System for BMW M4 F8x
GRAIL valve exhaust system for the BMW M4 F8x, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics ECE...
View full details
GRAIL Valvetronic exhaust system from OPF for Ferrari 812 GTS / Superfast
GRAIL valve exhaust system for the Ferrari 812 GTS / Superfast, including Swiss declaration of conformity. Valve control via the vehicle's factory...
View full details
GRAIL Valvetronic Exhaust System for Chevrolet Camaro Gen. 6 6.2 V8
GRAIL valved exhaust system for the Chevrolet Camaro Gen. 6 6.2 V8, including Swiss declaration of conformity. Valve control via the vehicle's fac...
View full details
GRAIL Valvetronic Exhaust System for Ford Mustang Gen. 7 Dark Horse S650 Coupe (from 2024, US)
GRAIL valved exhaust system for the Ford Mustang Gen. 7 Dark Horse S650 Coupe (from 2024, US), including Swiss declaration of conformity. Valve co...
View full details
GRAIL Valvetronic Exhaust System for Chevrolet Camaro Gen. 6 6.2 V8 ZL1 Coupe
GRAIL valved exhaust system for the Chevrolet Camaro Gen. 6 6.2 V8 ZL1 Coupe, including Swiss declaration of conformity. Valve control via the veh...
View full details