MagnaFlow Catback - Audi / S4 4.2L (B7) (NLA)Made in the USA and engineered to last, for those seeking increased performance and better economy, MagnaFlow Touring Series Performance Exhaust systems deliver the smooth deep sound you want and the wide open performance power you need. Our exhaust systems feature straight through flow designs for the ultimate in unrestricted horsepower and torque for big power while maintaining exhaust efficiency. These systems are an engineered balance of interior

The smooth transition bends decrease turbulence

To compensate for the higher IAT's the ECU (DME) reduces boost

paint-like finish

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Utilize the COBB Boost Tap to make for a simple

G08 10/2016-02/19

Designed with factory style connectors

Quality Corteco OEM brand

The simplest way to get Great Falls Green Metallic on your Volkswagen rear view mirror

Available in two sizes

Rear Axle Load Limit 1255kg

These lines provide the coolant that warms the heater core