FREVO VII VIII IX - Fuel rail EVO 7 -8- 9 RCI High Volume Fuel Rail features .800 ID (20.R5mm) to support 1000 + Horse Power The Large Bore Dampens back pressure pulse created by Large Fuel Injectors and works perfict with stock injectors .
Spacers are built into the mounting Brackets so there is NO problem dropping or loosing spacers on install.
Hard Anodize in and out to protect against Methenol/ E85/ Race Gas No problem with pump gas. . Supplied with stainless Steel mounting Hardware and In and Out Fittings Made in the USA