Originally Posted by 85vett
Agree with GTS Dean. No cats should mean that you shouldn't need anything extra done to keep the temps down.
Good read here - Dodge Viper GTS Exhaust Heat HeatShield Products
It's debatable on the effects of the wrap but I thought it was a pretty good article.
For side sill vents, these look nice. - https://www.speedtactics.com/various...qr-cdxnm-h8fpb
These are also debatable on effectiveness and also some concerns around debris being allowed to enter the openings and causing potential challenges.
Dave666 will most likely chime in with his mods which seem to work real well. I'm to chicken *&^% to try it though.
There's a big difference between the 'old-school' header wrap (roll) which can hold in moisture vs. the HeatShield Armor
(from that article) that is virtually sealed off by the outer aluminum shield which prevents almost all water and moisture from getting to the water-resistant insulation. It was actually invented for use on industrial trucks that are regularly pressure washed and have no issues with increased corrosion.
It also depends if you have a cheap mild steel exhaust or a higher quality 1990's OEM exhaust, and a very high quality stainless like you have with your Corsa system. I wouldn't be concerned with HeatShield Armor, but would agree that wrapping the exhaust with the fibrous hot-rod wrap roll probably wouldn't be a good idea.
Try reading the above article for more information on HeatShield Products and the pros/cons of a vented sill vs. insulating the sill.