Wot power gains do I get from 4.2.1 manifold Decat to back box no middle box
4.2.1 manifold Decat
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#2About 5-7bhp if your enginesin good nick.1 user thanked this post:
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#3It's in mint con mate only done 66000 got induction kit swell wantin to get it up to bout 170 bhp
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#4Ul b lookin at cams and throttle bodies aswell to get close to that mate!!
Jon
