Dear friend, please get one thing straight. The kind of pick or response you want or expect will not come from plugs (alone). Plugs, plug wires, good engine oil, filters etc and specially additives of various kinds will render the vehicle to operate the way "it should" or at the max "optimally" and reduce bottlenecks (if any). When it comes to performance gains/boost the route to adopt is Air Intake, Free flow exhaust, Headers, Hi Octane etc. In that case be ready to kiss Fuel Economy goodbye. As for the handling, correct choice of tyres with maximum grip and corresponding suspension is to be considered. This gets as endless as you can imagine. So don't think Hi Performance plugs/wires are gonna give you HPs.