Scrambler Scrambler arrow exhaust

had one fitted from new by dealer,love it,sounds great,but I noticed how easy it is to remove the baffle....so out it came! Only started it for a sec and put them back...I like a loud exhaust but it was deafening....have I removed the right bit ,as I also noted it doesn't look that good without the end of the can in.
Could I just enlarge the holes in the baffle slightly? Will it need or can I improve it any more by venturing into the air box?

 

Thanks mate... I've started by enlarging the holes , and adding a few...slightly better... Will read up on the rat site.. Thanks