Plus, if you buy them from Summit and they don't fit, Summit will take care of the return. That is what happened to me 30 years ago. I bought a pair of Headers from Summit (I really do not remember the brand for sure; might have been Hookers) and they absolutely did not fit. I think the flange on the passenger side was welded on at an incorrect angle at the factory. The driver side fit fine. but there was NO WAY the passenger side could ever fit. I called Summit and explained what was going on, and they took care of it. The Headman headers were about $50 cheaper and they cut me a check for that. I like Summit.