We have developed a high flow velocity stack kit for the Yamaha MT07/FZ07/R7. This combination will increase peak HP and TQ gains compared to OEM, especially above 7500 RPM. We saw +5 peak HP and +11 HP gains at red line. These velocity stacks will replace your stock rubber velocity stacks and are designed to be used with the MWR 63mm Angled POD Filter. Two stacks included with purchase. Hose clamps not included Three versions available: Short, Medium, Long Short Stack designed for shorty GP exhaust systems Medium Stack designed for stock exhaust systems Long Stack designed for longer piped exhaust systems If you want to combine two different sizes please send us an email before you purchase Optional CCV Catch bottle (buy ours or create your own) Does not include hose clamps MWR POD FILTERS NOT INCLUDED! - To purchace MWR PODS, please click HERE . In order to maintain our extremely high standard of quality products, CarbonSmith VELOCITY STACKS are not available in mass quantities and are made to order. �Each KIT takes over 18 hours of print time and are MADE TO ORDER , therefore your patience is very much appreciated. PLEASE READ OUR TERMS & CONDITIONS BEFORE PURCHASING, THANK YOU!