what are you guys using for your downstream o2's? i have spark plug antifoulers on mine but the down stream o2 have a pick up hole located on the tip of the sensor which puts it in the exhaust flow. I havent had a chance to take mine out yet but i think im gonna weld a washer to the bottom of the fouler and put two small holes offset so the o2 sensor tip isnt in direct exhaust flow. If anyone has em and could take a pic it would be greatly appreciated. BTW i gutted a bad pair of procats that i had laying around my shop that i removed from another members tl quite a while ago. Thanks for any help. Ryan.