I wrapped the RCM exhaust manifold with dei when new last year,intention was to take the car off the road,restore and use on dry days,plans changed so cars back on the road for winter.
I know they're stainless steel but will the trapped moisture start to rust them?
I'm also not running with the under tray,Not sure that would make a difference tho.

Cheers
Rich

 

If there's salt on your roads, they will rust. SS (atleast in the grades exhausts are normally offered in) isnt completely resistant to rust. Undertray would help in my opinion.

 

Ok cheers @LewisScoob yes usually salty in winter bit with all the cutbacks we hopefully run out of salt lol
I have got an under tray but not sure it will fit,it's a GC8 with twin scroll EL manifold.

 

Cable ties and duct tape... If you cant fix it with duct tape, you're not using enough duct tape!