welp i can say, dont buy the low to mid range impeller.
Hits 9 psi at like 5800 rpm, then it starts sliding off. at first we thought belt slip, but not slipping at all.
only hit 427 whp and 368 ftlbs.
I think this impeller would be suited better on a mustang etc.. after about 6000 rpm, the boost starts tapering off. it feels way faster then before, but i think thats cause its boosting sooner.
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