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The Radium Engineering fuel line retaining kit supports large aftermarket fuel lines under the 08-21 Subaru Impreza, WRX, and STi.
The retainers are made from 6061 aluminum and anodized to resist oxidation.
Includes 2 types of retaining clamps (4 in total).
Notes: 1. This kit does not include aftermarket fuel lines. Maximum hose OD is 0.69" (17.5mm).
2. There is no way of determining what size fuel lines can be used as there are many different types (rubber, braided, PTFE, aluminum, steel, etc).
3. Uses OEM holes with no drilling required.