Will this diffuser clear my exhaust tip on stock suspension?

Exhaust tip clearance depends on your specific exhaust setup and suspension height. Check that your current exhaust outlet sits comfortably above the diffuser profile before installation. If you're running lowered suspension, verify ground clearance on inclines and driveways.

Does this require the ZR Edition rear bumper to install?

This diffuser is engineered for the ZR Edition rear bumper or the factory rear bumper from the newer generation. Verify your current bumper's mounting hole pattern matches the diffuser attachment points before ordering.

Is this a functional or cosmetic piece?

This is a styling component. It delivers visual impact and aesthetic authenticity to the rear end. It is not designed to produce downforce or aerodynamic effects—install it for the look.