For your info i emailed a couple of questions and at I got a prompt reply- (apart from 3 doh)
Hi, I have a couple of questions about the moto gp style exhaust for
> kawasaki zx10r 2009, I am interesred in the one that keeps the
> original underneath silencer box and original pillion footpegs, 1)
> how loud would that be? - don't want to get pulled over! 2)would
> there be any power loss or gain- as have heard stubby cans loose
> power? 3) what would be best price includind delivery uk- cash -well
> debit card anyway
Thanks for your enquiry.
If you keep the underbelly baffle box the db level will be around 90, which is quite low for this type of can on such a large bike, also because the CAT is deep inside the headers, it also creates a kind of baffle.
The CAT and the underbelly baffle will also help to maintain some back pressure so reducing performance loss. For peak performance the bike will need to have a remap although most customers do not feel the need.
Regards