| "These adapters include the o-ring required for installing the adapter but do not include upper and lower injector o-rings, or fuel rail to plenum seals. The additional o-rings and seals needed can be found HERE and select the option at the bottom titled injector adapter supplement. " [ http://www.z1motorsports.com/product_info.php?cPath=6_17&products_id=5350 ] Did you read the instructions? [ http://www.z1motorsports.com/upload/Microsoft%20Word%20-%20Z1%20Injector%20Adapter%20Install%20Manual.pdf ]
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