Today me and my friend gutted the cat on the Shadow. The car has a much different sound, and some of the low end power is gone, but other than that the midrange and high end power is great. It will now squeel the tires while rolling. It never could do that before. And oh yeah the Cat was clogged so now I know it will never clog again. But anyway has anyone had a torque loss on the low end by gutting cat?

 

any time you free up an exhaust you will lose trq but will gain hp on the high end,thats all normal

 

Oh yeah that low end loss is gone. I think the computer finally compencated* for the less backpressure. Correct me if i am wrong. And i filled up my car and got 3 mpg better with the gutted Cat. I am just happy that i am saving gas and it was free to gut the Cat.