I can see why feel you had less performance
I may only have a 3rd grade education, but that sure reads like you're calling bs to my experience
![Wink ;)](https://board.marlincrawler.com/Smileys/marlin/wink.gif)
For the last several years I've had a 91 with the stock 22re except for a k&n stock replacement filter, and I'll find out soon enough whether or not I'll lose power or mileage when I install my 2.5" system on it. My prognosis is no, but that's only from having the same system on another nearly identical truck
![Thumbs Up :thumbs:](https://board.marlincrawler.com/Smileys/marlin/thumbs.gif)
Again, none of this is beneficial to the original poster. I strongly suggest snowtoy starts his own exhaust tubing size thread and see if any facts can find their way into it, or if it'll just be more theory.