I am installing a new reman. My stock oil cooler is pretty smashed up. I have pulled most of the fins out, but I am not 100% sure that I want to use it. I am thinking it would be wise to go with dual coolers. no, do I go stock dual coolers, or aftermarket? Are stock efficient?

Trev

 

Unless you have a "need" for dual oil coolers, just look at getting your stock one reconditioned:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/oil-cooler-fixing-cleaning-pics-info-382612/