Q7 stage 1 quiet insert adds a level of sound dampening to the applicable M4 eaxhaust system.
Please note there are 2 stages of decibel inserts from M4, stage 1 offers level 1 sound dampening while stage 2 offers a second lever of sound dampening
Emissions Notice to Customers in California
The State of California prohibits the offer for sale, sale, or installation of an aftermarket part, which alters or modifies the original design or performance of a motor vehicle?s pollution control devices or systems, unless the aftermarket part has first been exempted from the state?s anti-tampering laws and been issued an Executive Order (EO) number by the California Air Resource Board (ARB)
