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Home >> Jaguar >> 2014 >> XK Base, 2D Coupe >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System - V8 5.0L Petrol/V8 S/C 5.0L Petrol -- XK/X150 >> Exhaust System - V8 N/A 5.0L Petrol/V8 S/C 5.0L Petrol >> Exhaust System >> Description And Operation >> Principles Of Operation >> Active Exhaust System (Supercharger Vehicles Only)

Active Exhaust System (Supercharger Vehicles Only)

The position of the exhaust valves set by the ECM depends on engine speed, throttle angle and operating mode of the transmission. At startup the exhaust valves are always open, to enhance the exhaust sound.

When the transmission is in the manual (sequential shift) mode, the exhaust valves are permanently open. When the transmission is in the normal or sport mode, the position of the exhaust valves depends on engine speed and load, as detailed in the following table:

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