I currently have a set of these upgraded 4-hole Bosch injectors for my HF but I don't drive enough to get good FE improvement readings. I do notice easier starts and smoother acceleration. I have 1 free set available for someone on this forum willing to install these and keep a log on FE improvements (if any) and then post up detailed results. This injector set will drop right into any 92-95 VX, CX or HF engine. If you have an 88-91 HF I will include the resistor box delete plug. Please PM me if interested.
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