The combination of lightweight design and performant NVH solutions has gained a lot of importance over the past decades. Lightweight design complies with the ever more stringent environmental requirements, although it conflicts with the NVH performance, since low noise and vibration levels often requires heavy and bulky systems, especially at the low frequency ranges. To face this challenge, locally resonant metamaterials come to the fore as low mass, compact volume NVH solutions in some tunable frequency zones, referred to as stopbands. Metamaterials are artificial materials made from assemblies of unit cells of non-homogeneous material composition and/or topology. The local interaction between unit cells leads to superior performance in terms of noise and vibration reduction with respect to the conventional NVH treatments. Previously the authors showed how wave propagation along one-dimensional structures can be reduced by metamaterial additions. In this presentation the authors apply the concept of metamaterials to reduce vibration in a complex 2D structure upon excitation from one input location. Numerical and experimental results are shown for a simplified model representing part of a body of a vehicle excited by a shock absorber. By adding metamaterials on a limited portion of the structure, an average of 6.8 dB with a minimum of 3 dB vibration reduction is achieved in a 50 Hz frequency band centered around 300 Hz, with only adding 2.4 percent of mass to the structure. The frequency band, the attenuation and the added mass are all tunable by design.