Hey,
I would be gratefull if you could post your dyno ones fitted.
I would like to have a full Ti Arrow system. However, people at Arrow didn't recommend it on a stock engine. It has been developed for modified engines. The first system is the system for the stock engine.
I'm quite in favor of the arrow system as the performance of those exhausts is exellent. BUT, they are deliverd only in SS for stock bikes.
You can try the full Ti system on a stock bike but they don't garantuee anything.
So I would like to hear how it performs.