#Ported heads? 03 Mazda protege5

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restive gate
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https://www.speedcircuit.net/collections/mazda-protege-engine-components/products/speedcircuit-ported-head-fs-engine?variant=32018485477439

SpeedCircuit
SpeedCircuit Ported Head (FS Engine)

The long awaited SpeedCircuit Heads for the 2.0L Protege are now available! These heads will flow up to 71% more air at certain lifts over a stock head! All SpeedCircuit heads are completely stripped down and rebuilt, including new parts where necessary. There are two stages of heads available. Stage 1 includes: Specia

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my car is bone stock healthy engine and i am not planning to turbo it because that would require building a engine and i couldnt be bother to do that anytime soon