I was wondering, why don’t our car used check valves? Are they not need are something?

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I think you thinking of a honda? They use them to fool the comp. I know that odb2 cars are the worst to try to tune late mike

stage BIG custom mj racing turbo set up, built block.worked head,all tial components, hks evcez,spearco 992,oh yeah and a huge bottle in the trunk last run all turbo 13.8@108 no nos dyno'd at AEBS in Cali with 300+ hp to the wheels

So they are not needed?

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