Radium Engineering Fuel Surge Tank Install Kit | 2008-2015 Mitsubishi Evolution X (20-0113)

A surge tank belongs in a collision-safe spot with clean wiring and purpose-cut lines, not wherever it happened to fit.

The Radium Engineering Fuel Surge Tank Install Kit for the Evo X packages the entire installation: a powder coated aluminum bracket that locates a Radium single pump FST centered behind the rear seat, in front of the trunk's plastic paneling, secured to OEM mounting bosses with no drilling or cutting. Four preassembled cut-to-length 6AN PTFE hoses handle the plumbing, and the wiring components arrive with flying leads, Raychem solderless butt splices, and a weatherproof fuse and relay. The panel goes back on afterward, so you keep 100 percent of usable trunk space. FST and pump sold separately.

What You'll Feel

• A surge tank tucked into a collision-safe location that costs you zero trunk space
• No fuel smell in the cabin, since the PTFE hoses are non-permeable unlike rubber
• Wiring done in under 30 minutes with no soldering, thanks to solderless splices and the included relay and fuse
• Battery and washer bottle staying exactly where Mitsubishi put them
• Lines that fit the chassis precisely, because they were cut to length for this application

Features

• Locates the FST centered behind the rear seat, in front of the trunk's plastic paneling, in a collision-safe area
• Powder coated aluminum bracket secures to OEM mounting bosses; no drilling or cutting
• 4x preassembled 6AN (3/8") PTFE hoses, cut to length for the Evo X, with anodized aluminum hose ends, stainless inner braid, and abrasion-resistant black PVC cover
• Wiring components with flying leads, Raychem solderless butt splices, weatherproof fuse, and relay
• AN and OEM style adapter fittings with stainless steel hardware
• Compatible with Radium single pump FSTs using a 39mm pump or Bosch 044; OEM battery and washer reservoir retained

The Details

Placement drove this kit's design. The spot behind the rear seat sits inside the car's protected structure, away from crush zones, heat, and suspension, and because the factory trim panel reinstalls over the finished assembly, the install is invisible in daily use. The four PTFE hoses cover the surge tank loop: lift supply in, feed out toward the engine, regulator return, and overflow back to the tank, each preassembled so there is no hose-end building on your garage floor. Electrically, the flying-lead harness with its weatherproof relay and fuse drives the FST's internal pump, and the solderless Raychem splices make the connections crimp-and-heat simple. Two compatibility gates to check before ordering: this kit was not designed for the Radium MPFST, and it does not fit RHD Evo X models with the large OEM windshield washer reservoir, so check your reservoir first. The FST itself and its fuel pump are sold separately, letting you pick the pump configuration your power goal needs.

Kit Includes

• 4x Preassembled 6AN PTFE hoses, cut to length
• 1x Powder coated aluminum mounting bracket
• AN and OEM style adapter fittings
• Wiring components with flying leads, Raychem splices, weatherproof fuse, and relay
• Stainless steel hardware
• FST and fuel pump NOT included, sold separately

Applications

• 2008-2015 Mitsubishi Lancer Evolution X
• Radium single pump FSTs with 39mm pumps (Walbro, AEM, Aeromotive, Deatschwerks) or Bosch 044
• Not compatible with the Radium MPFST; not compatible with RHD models using the large OEM washer reservoir