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 Ford Mustang 5.0 GT V8 Gen. 6 S550 VFL (2015-2017, EU)
GRAIL valved exhaust system for the Ford Mustang 5.0 GT V8 Gen. 6 S550 VFL (2015-2017, EU), including Swiss declaration of conformity. Valve contr...
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GRAIL Valvetronic Exhaust System for Ford Focus MK2
GRAIL valve exhaust system for the Ford Focus MK2, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics ...
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GRAIL Valvetronic Exhaust System for Ford Focus MK4 ST
GRAIL valve exhaust system for the Ford Focus MK4 ST, including Swiss declaration of conformity. Valve control via the vehicle's factory electroni...
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GRAIL Valvetronic Exhaust System for Ford Mustang 5.0 GT V8 Gen. 6 S550 FL (2018-2024, EU)
GRAIL valved exhaust system for the Ford Mustang 5.0 GT V8 Gen. 6 S550 FL (2018-2024, EU), including Swiss declaration of conformity. Valve contro...
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GRAIL Valvetronic Exhaust System for Toyota GR Supra 3.0 MK5
GRAIL valved exhaust system for the Toyota GR Supra 3.0 MK5, including Swiss declaration of conformity. Valve control via the vehicle's factory el...
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GRAIL Valvetronic Exhaust System for Kia Stinger 3.3 T-GDi (2017-2023)
GRAIL valve exhaust system for the Kia Stinger 3.3 T-GDi (2017-2023), including Swiss declaration of conformity. Valve control via the vehicle's f...
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GRAIL Valvetronic Exhaust System for Hyundai i30N VFL
GRAIL valve exhaust system for the Hyundai i30N VFL, including Swiss declaration of conformity. Valve control via the vehicle's factory electronic...
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GRAIL Center-Exit Exhaust System for Skoda Octavia IV RS NX Estate
GRAIL valve exhaust system for the Skoda Octavia IV RS NX Combi, including Swiss declaration of conformity. Valve control via the vehicle's factor...
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GRAIL Center-Exit Exhaust System for Skoda Octavia III RS 5E Combi
GRAIL valve exhaust system for the Skoda Octavia III RS 5E Combi, including Swiss declaration of conformity. Valve control via the vehicle's facto...
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GRAIL Center-Exit Exhaust System for Hyundai i30N Facelift
GRAIL valve exhaust system for the Hyundai i30N facelift, including Swiss declaration of conformity. Valve control via the vehicle's factory elect...
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GRAIL Valvetronic Exhaust System for SEAT Leon Cupra ST 310 hp (KL)
GRAIL valve exhaust system for the SEAT Leon Cupra ST 310 hp (KL), including Swiss declaration of conformity. Valve control via the vehicle's fact...
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GRAIL Center-Exit Exhaust System for SEAT Leon ST Cupra FWD (5F8)
GRAIL valve exhaust system for the SEAT Leon ST Cupra FWD (5F8), including Swiss declaration of conformity. Valve control via the vehicle's factor...
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GRAIL Valvetronic exhaust system for SEAT Leon ST Cupra R 4Drive DSG (5F/5F8)
GRAIL valve exhaust system for the SEAT Leon ST Cupra R 4Drive DSG (5F/5F8), including Swiss declaration of conformity. Valve control via the vehi...
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GRAIL Valvetronic Exhaust System for SEAT Leon ST Cupra AWD (5F8)
GRAIL valve exhaust system for the SEAT Leon ST Cupra AWD (5F8), including Swiss declaration of conformity. Valve control via the vehicle's factor...
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GRAIL 3.5-inch valved exhaust system for CUPRA Formentor VZ5
GRAIL valve exhaust system for the CUPRA Formentor VZ5, including Swiss declaration of conformity. Valve control via the vehicle's factory electro...
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GRAIL 3.5-inch valved exhaust system for SEAT Leon 5F / SC Cupra
GRAIL valve exhaust system for the SEAT Leon 5F / SC Cupra, including Swiss declaration of conformity. Valve control via the vehicle's factory ele...
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GRAIL 3.5-inch valved exhaust system for CUPRA Ateca
GRAIL valve exhaust system for the CUPRA Ateca, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics EC...
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GRAIL 3.5-inch valved exhaust system for SEAT Leon Cupra R
GRAIL valve exhaust system for the SEAT Leon Cupra R, including Swiss declaration of conformity. Valve control via the vehicle's factory electroni...
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GRAIL Valvetronic Exhaust System for CUPRA Formentor VZ (310/333 hp)
GRAIL valved exhaust system for the CUPRA Formentor VZ (310/333 hp), including Swiss declaration of conformity. Valve control via the vehicle's fa...
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GRAIL 3-inch valved exhaust system from OPF for VW Golf 7 GTI Facelift
GRAIL valve exhaust system for the VW Golf 7 GTI Facelift, including Swiss declaration of conformity. Valve control via the vehicle's factory elec...
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GRAIL 3.5-inch valved exhaust system for VW Golf 6 GTI
GRAIL valve exhaust system for the VW Golf 6 GTI, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics ...
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GRAIL 3.5-inch Valvetronic Exhaust System for VW Golf 8 GTI Performance (DNPA)
GRAIL valve exhaust system for the VW Golf 8 GTI Performance (DNPA), including Swiss declaration of conformity. Valve control via the vehicle's fa...
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GRAIL 3.5-inch valved exhaust system for VW Golf 8 R (DNFG)
GRAIL valve exhaust system for the VW Golf 8 R (DNFG), including Swiss declaration of conformity. Valve control via the vehicle's factory electron...
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GRAIL 3.5-inch Valvetronic Exhaust System for VW Golf 7 R FL
GRAIL valve exhaust system for the VW Golf 7 R FL, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics ...
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