Waste of $$$. First, contrary to what their hype might say, they don't help with torque. They only boost the HP a tad when the engine is at wide-open throttle and extremely high rpms like if it were being raced. Around town or on the highway, you won't even notice a chip's presence. By the way, the chip manufacturers are only allowed to legally sell them by restricting their operation to WOT and high rpms.