I have a blitz ID3 dual solenoid on the drift car, arguably the best on the market
its never spiked, it has a screen with a graph so u can look back over the last half a minute or so and see your response and boost level. has a safety cut so if it does spike, it cuts the boost to a set level to prevent it happening.
pair it with the blitz power meter and you can even set boost by speed.
they are around $500 secondhand now.
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