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 Charger 6.4 SRT (2015-2024)
GRAIL valved exhaust system for the Dodge Charger 6.4 SRT (2015-2024), including Swiss declaration of conformity. Valve control via the vehicle's ...
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GRAIL Valvetronic Exhaust System for Dodge Charger 5.7 Hemi (2017-2020)
GRAIL valved exhaust system for the Dodge Charger 5.7 Hemi (2017-2020), including Swiss declaration of conformity. Valve control via the vehicle's...
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GRAIL Valvetronic Exhaust System for Jeep Grand Cherokee WK2 Trackhawk
GRAIL valve exhaust system for the Jeep Grand Cherokee WK2 Trackhawk, including Swiss declaration of conformity. Valve control via the vehicle's f...
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GRAIL valved exhaust system for Jeep Grand Cherokee WK2 SRT (from model year 2014)
GRAIL valved exhaust system for the Jeep Grand Cherokee WK2 SRT (from model year 2014), including Swiss declaration of conformity. Valve control v...
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GRAIL Valvetronic exhaust system for Ferrari F12
GRAIL valve exhaust system for the Ferrari F12, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics EC...
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GRAIL valve exhaust system without OPF for Ferrari 812 Superfast
GRAIL valve exhaust system for the Ferrari 812 Superfast, including Swiss declaration of conformity. Valve control via the vehicle's factory elect...
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GRAIL Valvetronic Exhaust System for Audi A4 B9 (180/185 kW, 2015-2024)
GRAIL valved exhaust system for the Audi A4 B9 (180/185 kW, 2015-2024), including Swiss declaration of conformity. Valve control via the vehicle's...
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GRAIL Valvetronic Exhaust System for Ford Mustang 5.0 GT V8 Gen. 6 S550 VFL (2015-2017, US)
GRAIL valved exhaust system for the Ford Mustang 5.0 GT V8 Gen. 6 S550 VFL (2015-2017, US), including Swiss declaration of conformity. Valve contr...
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GRAIL Valvetronic Exhaust System for Dodge Challenger 6.1 SRT
GRAIL valved exhaust system for the Dodge Challenger 6.1 SRT, including Swiss declaration of conformity. Valve control via the vehicle's factory e...
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GRAIL Valvetronic Exhaust System for Dodge Challenger 6.2 Hellcat / Red Eye / Jailbreak / XR
GRAIL valved exhaust system for the Dodge Challenger 6.2 Hellcat / Red Eye / Jailbreak / XR, including Swiss declaration of conformity. Valve cont...
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GRAIL Valvetronic Exhaust System for Dodge Charger 5.7 Hemi (2011-2016)
GRAIL valved exhaust system for the Dodge Charger 5.7 Hemi (2011-2016), including Swiss declaration of conformity. Valve control via the vehicle's...
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GRAIL Valvetronic Exhaust System for Dodge Charger 5.7 Hemi (2008-2010)
GRAIL valved exhaust system for the Dodge Charger 5.7 Hemi (2008-2010), including Swiss declaration of conformity. Valve control via the vehicle's...
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GRAIL Valvetronic Exhaust System for Dodge Challenger 6.2 Demon / Demon 170
GRAIL valved exhaust system for the Dodge Challenger 6.2 Demon / Demon 170, including Swiss declaration of conformity. Valve control via the vehic...
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GRAIL Valvetronic Exhaust System for Dodge Challenger 6.4 SRT (2015-2024)
GRAIL valved exhaust system for the Dodge Challenger 6.4 SRT (2015-2024), including Swiss declaration of conformity. Valve control via the vehicle...
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GRAIL Valvetronic Exhaust System for Porsche 911 GT3 RS (991.1) Link Pipes
GRAIL valved exhaust system for the Porsche 911 GT3 RS (991.1) Link Pipes, including Swiss declaration of conformity. Valve control via the vehicl...
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GRAIL Valvetronic Exhaust System for Porsche 911 GT3 (991.1) Link Pipes
GRAIL valved exhaust system for the Porsche 911 GT3 (991.1) Link Pipes, including Swiss declaration of conformity. Valve control via the vehicle's...
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GRAIL Valvetronic Exhaust System for Dodge Challenger 5.7 Hemi (2011-2016)
GRAIL valved exhaust system for the Dodge Challenger 5.7 Hemi (2011-2016), including Swiss declaration of conformity. Valve control via the vehicl...
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GRAIL Valvetronic Exhaust System for Dodge Challenger 5.7 Hemi (2008-2010)
GRAIL valved exhaust system for the Dodge Challenger 5.7 Hemi (2008-2010), including Swiss declaration of conformity. Valve control via the vehicl...
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GRAIL Valvetronic exhaust system without OPF for Porsche 911 GT3 (991.2) Link Pipes
GRAIL valved exhaust system for the Porsche 911 GT3 (991.2) Link Pipes, including Swiss declaration of conformity. Valve control via the vehicle's...
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GRAIL Valvetronic Exhaust System for Ford Mustang Gen. 7 Dark Horse S650 Coupe (from 2024, EU)
GRAIL valved exhaust system for the Ford Mustang Gen. 7 Dark Horse S650 Coupe (from 2024, EU), including Swiss declaration of conformity. Valve co...
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GRAIL Valvetronic exhaust system for McLaren 720S
GRAIL valved exhaust system for the McLaren 720S, including Swiss declaration of conformity. Valve control via the vehicle's factory electronics ...
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GRAIL Valvetronic Exhaust System for Ford Mustang Gen. 5 S197 GT (2011-2014)
GRAIL valved exhaust system for the Ford Mustang Gen. 5 S197 GT (2011-2014), including Swiss declaration of conformity. Valve control via the vehi...
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GRAIL Valvetronic Exhaust System for Ford Mustang Gen. 5 S197 GT500 5.8 (2013-2014)
GRAIL valved exhaust system for the Ford Mustang Gen. 5 S197 GT500 5.8 (2013-2014), including Swiss declaration of conformity. Valve control via t...
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GRAIL Valvetronic Exhaust System for Dodge RAM 1500 4th Gen.
GRAIL valved exhaust system for the Dodge RAM 1500 4th Gen., including Swiss declaration of conformity. Valve control via the vehicle's factory el...
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