Also, take that wrap off them headers. That’s gonna aid in destroying them.
this seems to be a common idea that i tend to not agree with. not saying its wrong just my experience say differently.
lot of my experiences come from the honda world and we often buy headers from ebay. they are cheap and a basic knock off of a regular 3-2-1 header design. i ran a cheap ebay header on my civic for probably 3 years or longer. first year without wrapping them. the other 2 years i did have them wrapped.
when i went turbo i got rid of the header obviously and i pulled the wrap off of them and found that they looked no different than when i wrapped them (other than a bit dirty i suppose) and i drove that car daily through rain and snow and all. (also it is lowered and the heady would often drag the ground even so it certainly got wet)
when you drive your vehicle the headers heat up obviously and any moisture built up on them will evaporate. now i know my experience was not a very long time but with the what people say it seems like it is enough time to have caused rusting.
this also may be the difference in a daily driver and a vehicle that doesnt get driven often. so think that if you drive it enough for the moisture to evaporate then yea its going to sit on the pipes and likely rust them out faster than if they where in open air. but im no scientist or anything im just some douche bag on the internet lol. i may have to check out the other thread mentioned and see what info others have found.
just throwing that out there as my personal experience i dont think the header wrap will cause an issue.