I Have An 06 Base350..i Hade To Weld My O2s In The Stock Cats Because My Test Pipes ****ed The Up.....is It Ok To Use Aftermarket O2s Like Denso Or Bosch Or Do I Have To Buy Factory.....i Took My Test Pipes Off Cuz They Were Smoking Alot When I Would Take Off ..but I Think It Was The Pipes Burning The Inside Stuff Off....im Not Sure They Melted My Stock O2s....any Help Would Be Great.,.