Some T1XX models (Z71, High Country, AT4) come with Magnetic Ride Control (MRC) shocks. If you’re lifting or want to change the suspension, here’s what to know about the MRC system.
What Is Magnetic Ride Control?
MRC uses shocks filled with magnetorheological fluid. An electromagnetic current changes the viscosity of the fluid, adjusting shock firmness in real time. It delivers an excellent balance of comfort and body control.
Trim Levels with MRC:
- Silverado Z71, High Country
- Sierra AT4, Denali
Why Consider Replacing MRC:
- Lifting: Aftermarket lift kits require replacement shocks that may not accommodate MRC
- Cost: MRC shocks are expensive to replace ($300–$600+ each)
- Aftermarket Performance: Some owners prefer the tuning flexibility of conventional aftermarket shocks
MRC Delete Options:
Option 1: Keep MRC and Lift Carefully
At 2" level, MRC shocks can remain in use if the spacer sits on top of the strut without affecting shock travel.
Option 2: Replace with Conventional Shocks
Replace MRC shocks with conventional aftermarket shocks. This requires a module fix (emulator or tune) to prevent the “Service Suspension” warning that appears when MRC sensors are removed.
Option 3: Tune to Disable MRC Warning
A custom tune or MRC emulator module can suppress the service warnings after removing MRC shocks.
Bilstein 5100 Front Shock – Popular replacement when deleting MRC. Set to the appropriate position for your lift height.
Cost of MRC Delete:
- Replacement shocks: $100–$300/pair
- MRC emulator: $100–$200
- Total: $300–$500 vs $1,200–$2,400 for OEM MRC replacement
Has anyone deleted MRC on their T1XX? What emulator or tune did you use?