Gentle men, gentle men, There is no reason to turn every Catch Can thread into a fight between believers and non-believers. Can't we all just get along? I will admit that I always have my fun in catch can threads talking about the HP gains and proper decal placement to add to that HP, but if there are believers and non-believers there is room in this forum to co-exist. The thing is I don't think either side can prove or disprove if it makes any real difference in your vehicles. Sure, the believers can show pictures of dirty intakes and non- believers can point to many vehicles with high mileage and no issues without catch cans. Main point is nobody can force people on each side to repent either way. Let's all just enjoy our trucks .