Hello everyone, coming from the 3IS forum. I was looking at getting the RC Invidia axle back and I was wondering if any of you guys had it? I need to figure out the tip size. (Horizontal and vertical) I have a aftermarket diffuser that may fit it. Thanks in advance!

 

You're in luck! I happen to have the Q300s sitting in my garage and I hope these pictures help you out. Let me know if you have any more questions about it.