bbspolo

Just finished make a cat back system on a l200 today, i removed both the back box and the little silenser and replaced them with one box and twin pipes but although looking good sounds excatly the same as stock?

Now i was quite happy with this but the chap whos truck it is wants a (little) bit of a rumble 2 it so ive been thinking!
I can ither take the cat out (not rearly ideal when mot time comes around) and im not sure how much more noise it will make??

or replaced the box i used with a different sized one? not ideal for back pressure (and its a td so im sure its quite important on them?)

or the other crazy idear some one came up with is putting a cherry bomb in it with the system i allready made up 2day!
now i know nothing about these? do they act as a amplefire for noise or are they just a very free flowing exhaust box as i used 2 think?

or the other idear is buy a electronic valve and fit it just before the last silencer and if he wants loads of noise he can flick a switch and run it with no silencer

any opinions would be great!!