Yeah, that's where I seen the tip too....on Facebook.. Might be getting one for my 700-2 soon.I got the 2D one it's cheaper lol. Was just talking about it on the thread about exhaust fumes. It helps with the exhaust fumes it blows the air out not down. The stock tip has a huge spark arrestor and that small tube has to slow airflow a lot. Take the stock tip out and look at it. The new 2D and 3D tip is a little louder and deeper sound. Helps with airflow a lot. Probably gives a little boost in performance with the added airflow. It's cheap i see no reason in not buying it. Guys on the facebook group have them. I put up a sound clip on that page.