Hey guys i installed a DNA Motoring HDS-STC11 Stainless Steel Exhaust Header Manifold and i got everything on perfectly except when i went to plug the Oxygen Sensor in it wouldn't screw on and or doesn't fit the new header causing it to turn on my CEL and making my car go from 26 mpg to 17.0 mpg while also deleting Eco mode obviously. I went and did a little bit of research and i ended up buying this hoping it would work (https://www.amazon.com/gp...le_s00?ie=UTF8&psc=1)

... i really need to get this fix i can leave the link in the thread please i need help. Thank you so much in advance! p.s. im new to this car modding world kinda.