I am a cat guy with team clutches and ride with many guys cat and winders!! They are both within a few liters of each other!!!
Yesterday we were 2 tuned cats
Mine pm bundle with header and a stock muffler tune bundle.
The first fill up I was 3 $ more (I was riding hard) the 2nd fill up he was 3$ more (he was riding hard and I took it easy
This is pretty well the same outcome with my cat and the winders I have ridden with
Don't forget to push down on rear of sled when filling your good for a few extra liters due to air lock in tank