The Volumetric efficiency and keeping pressure up with bottle headers is MUCH better with 2x10s than 1x20 # bottle.
i had 2 x10s Y'ed together and a 300 watt heater on each. I could make 6 back to back pulls on a baby 175 shot before i would start dropping pressure.. after 10 hits i was down from 1000 to 900#
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2008 C6 coupe BPU++ Tuned by sam.
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