of the Z32 is sufficient unless running extreme levels of boost. However there are others that say they get increased throttle response and a slight performance gain from this modification. I was looking in to one of these some time ago and I just did not see a justification in spending the money for what its worth on the Z. I think your probably better off selling it and investing the money somewhere else. Also my .02c I think that the throttle response that some people report seeing from this might just be the fact of them cleaning there ptu connectors when they remove the plugs for all the splicing. HKS Twin Power Ignition Amplifier Installation
