Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Exhaust Damper (Certain Versions Only).
The purpose of the exhaust damper is to enhance the audio experience in specific operating conditions, e.g. when the vehicle is in Sport mode.
There are two dampers, one for each bank in the exhaust system. Each damper is controlled by an electric damper motor. The Engine Control Module (ECM) controls the position of the damper using a pulse width modulated (PWM) signal to the motors. The same signal goes to both the motors.
The dampers are permanently integrated in the silencers. Both damper motors are mounted above the dampers and can be replaced separately.
The Engine Control Module (ECM) can diagnose the exhaust dampers.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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