Hey Gang,
I hope this message finds everybody doing well here i just have a couple of questions.

1. Is there any sites or information out there on dyno numbers or actual horsepower gains of the various exhaust systems?

2. Which EFI controller seems to be working the best wth these machines? horsepower gains and ease of adjustment? I am familiar with jetting dirt bike and quad 2 stroke and 4 stroke carbs but dont have any real experience in messing around with EFI mapping and controllers

Thanks!!