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This comprehensive Radium Engineering installation kit is designed to mount a fuel surge tank (FST) in the trunk of the 1999–2006 BMW E46 3-Series and M3. It offers a clean, secure solution using OEM mounting points and high-quality components.
Vehicle Compatibility:
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1999–2006 BMW E46 3-Series (Sedan, Coupe, Touring)
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1999–2006 BMW E46 M3
Not compatible with convertibles
Key Features:
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Bolt-on installation behind the rear seat – no cutting or permanent modifications
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Mounts FST in a collision-safe, insulated location
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Aluminum bracket with vibration-isolating rubber grommets
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Modular wiring setup with Delphi weatherpak connector
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Clean bulkhead plate design for interior hose pass-through
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Includes everything needed except the FST (sold separately)
Note:
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Fuel surge tank (FST) is not included and must be purchased separately.
Contents
Preassembled 3/8" (-6AN) PTFE hoses (x4)
Aluminum FST mounting bracket with isolators
Anodized aluminum bulkhead plate
AN bulkhead and adapter fittings
Stainless steel mounting hardware
40A relay and 25A fuse
Modular fuel pump trigger wiring with weather-sealed connector
No instructions available for this product.

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