My MC21 race bike is going to having a fair bit of work done over winter to find more power to help me compete with the diesels in Thunderbikes.

I've been thinking about exhausts though! I'm currently running Tyga GP pipes and obviously the routing is a bit more restrictive than side by sides.

What side by side pipes would any of you guys recommend that are still available (or that you might have tucked away in your garage and might be persuaded to sell!!!)?

As its only a race bike, they dont need to be road friendly, the more power the better!