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wastegate vents exhaust gases at the turbo so the turbo doesnt make more boost than you want, say you want 12psi, it'll open once the turbo makes more than 12psi.
a BOV situated inbetween the turbo and throttle body vents pressure inbetween shifts(when the throttle plate closes) so the air doesnt go right back into the turbo and screw something up.
Last edited by AzCivic : 02-16-2004 at 07:06 PM.
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