Pecora and Carroll (1990) showed that chaotic systems can synchronize when one (the driver) feeds into a response system — despite sensitive dependence on initial conditions.
The coupling term drives x₂ → x₁. Lyapunov exponents of the response system become negative — the transverse manifold is stable.
Try coupling = 0 to see divergence; increase it to watch synchronization lock in. The scatter plot below shows x₁ vs x₂ collapsing to the diagonal.