I keep a set in my freezer for when needed......

 

I use 1 of these. Works great every time.

 

I have one of these tools on the way.

 

Thats a nifty tool! Freezer trick works like a charm!

 

I think jkeeton already clarified the pipes manufacturer recommended the use of the tapered style header gasket.

My experience tells me,I will continue to use and recommend the HD 17048-98 header gasket. It is my first pick, better put, when application finds it suitable. How's that?

BTW, I have found with some aftermarket pipes where either style tapered, or performance gaskets will work.