Best duramax twin overflow tank

[young12valve]

As stated who makes the best over flow tank for a compound set up? Right now I have a sketchy caviler overflow tank and it is giving me fits. I tried to get a new cap for it and the new one from gm will not work right. So who makes the best one? Danville, ppe, wehrli, hsp.......
Any input would be appreciated. Thanks

 

[young12valve]

Anyone?

 

[Chris Tobin]

I believe Merchant Automotive makes a very nice one... Polished aluminum and all...

http://www.merchant-automotive.com/p-724-twin-turbo-alum-fabricated-coolant-tank-polished.aspx

I have their standard polished replacement tank in my Duramax and it works great and looks great too!