Alot of people have been talking bad about the AN-R header for its cracking when its ran open header. Ive been driving it around open header for 3 days now. and went to the track twice. A total of 26 runs have been made on this header all within a short period of time. i removed the header and sealedup all the ports on the manifold as well as the collector with duct tape. made it air tight. and slowly started to put air in it for about 10 mins finally the the tape on the collector blew off. so no leaks no cracks very happy with my AN-R header

 

I believe AN-R is going to go with a thicker steel. Good news.

 

That is what an AN-R rep said in another thread. Hope they start doing this soon.

 

i believe they already have started doing this. the qaulity has improved from the other AN-R header that i had

 

That's really good to hear.