Professional Answer to Exhaust Size Question 2.5" vs 3"

Theres a lot of good articles on my website to help you guys on exhaust theory if you have time to read. While I specialize in high end headers it might be a good read for many of you.

www.perfweldheaders.com

Where are the articles located on your site Mark? I clicked on "header tech articles" and there wasn't anything there.