| Message | Most cars After 640-650 you start to see a drop in pressure on -6 lines. I'd recommend two pumps if you plan to stay above 650. My car was tuned safely, but I plan to add another inline pump not because car needs it, but doing it for future endeavors. 
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 2016 Nissan Altima SR1994 Nissan 300zx sport 700 Twin Turbo
 
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