I did exactly the same as you mate and sold the small Akra 'race' can - just too loud ! But I do wonder whether it would be worth getting the db killer out of the road legal can to see what it would sound like. As it's a much larger can it might be less ridiculous than the race version sound.As it is it's just a little quiet I think although very nice at high revs. And I've had good results just by reducing the length of the baffle pipe in the past too.looks great,, love the black option.
imo, all full exhaust systems are deafening.
i had to buy another muffler with a db-killer.