Sorry Matt, but from what you had to say on this thread I am not sure you have any credibility or know what you are talking about.

https://www.scoobynet.com/891825-har...fitting-3.html

 

A turbos number one enemy is heat. Anything that lowers temperatures is a good thing imo. When funds allow i will be wrapping my headers.

 

Especially in threads about headers, up-pipes, DEI wrapping and other things he sells!

Do a 'search' for said items on here and you'll find that I know what I'm talking about.

Though occasionally when Harvey's on about another subject nobody's opinion is worth anything as he is the only true knowledge on everything Subaru. Just skip past all the other answers on a thread asking for advice as nobody knows what they are on about if Sir Harvey has posted.