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Fit Rockers

droidt

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What sort of power increase would FIT 1.9:1 High Ratio Roller Rocker Arms give to a standard non Supercharged VX Ecotec ??? approx :)

Are extractors a must to do this upgrade??

what other upgrades are recomended to be done at the same time??

Cheers :w00t:
 

VT-565

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there is heaps of info on fit's site and on this forum about the advantages of the 1.9:1 rockers.....i even think there is a dyno graph of an N/A ecotec before and after fitment on the site. As for the extractors, well, to take better advantage of the upgrade, yes they would be a good idea to fit. Also maybe a higher flowing air filter and a tune would be worthwhile after your rocker change.
 
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