Radium Fuel Surge Tank Install Kit - Mitsubishi Evo X

Radium Fuel Surge Tank Install Kit — Mitsubishi Lancer Evolution X

This comprehensive installation kit includes everything needed to install a Radium Engineering single-pump fuel surge tank (FST) in the Mitsubishi Lancer Evolution X. Compatible with Walbro, AEM, Aeromotive, Deatschwerks, and Bosch equipped FSTs. Not designed for use with the Radium MPFST.

The kit locates the FST in a collision-safe area, centred behind the rear seat and in front of the plastic panelling in the boot — retaining 100% of useable boot space as the panel reinstalls after fitment. The powdercoated aluminium bracket secures to OEM mounting bosses with no drilling or cutting required. The OEM battery and windshield washer fluid bottle are fully retained and do not need to be relocated.

Four pre-assembled 6AN PTFE hoses are included, cut to length specifically for this application and integrated with the OEM fuel lines. PTFE hose is non-permeable, eliminating fuel vapour smell in the cabin, and is ideal for high alcohol content fuels including E85. Hose ends are anodized aluminium with an inner stainless steel braid covered in black PVC for abrasion and debris protection.

Wiring components include a weatherproof fuse and relay to drive the FST fuel pump. Assembly takes less than 30 minutes and requires no soldering.

Suits:

• Mitsubishi Lancer Evolution X — single-pump FST installations

Kit Includes:

• 4x Pre-assembled 3/8" (6AN) PTFE hoses (cut to length)
• Powdercoated aluminium mounting bracket
• AN and OEM-style adapter fittings
• Stainless steel hardware
• Wiring components with relay and weatherproof fuse
• Installation instructions

Important Notes:

• Dual pump FST: This kit supports a single pump only. For dual-pump FSTs, a DIY wiring harness and additional PTFE hose to the fuel rail will be required — contact Radium for details.
• FST-R: If using a Radium FST-R, the plumbing in this kit is designed to reuse the OEM Mitsubishi FPR. One hose in the kit will not be used, and the OEM 1/4" rubber FPR return hose will need to be removed, drained, or plugged. The FPR vacuum hose will also need to be extended to the boot.
• OEM return port restriction: Due to the restrictive return port on the OEM fuel pump housing, slightly elevated static fuel pressure is normal when using a high-flow pump. The OEM housing return port can be enlarged to alleviate this restriction — refer to the instruction manual.

Available Part Numbers:

• 20-0113 — Fuel Surge Tank Install Kit, Mitsubishi Lancer Evolution X

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ Pre-assembled PTFE hoses with anodized aluminium ends and stainless steel braid — E85 and alcohol compliant
• ✅ Trusted by tuners and race teams running high-power Evo X builds worldwide
• ✅ Bolt-on fitment to OEM mounting bosses — no drilling, cutting, or battery/washer bottle relocation
• ✅ Plug-and-play wiring with relay and weatherproof fuse — under 30 minutes, no soldering required

• We endeavour to ship all regular and stocked items on same day, next day or within 5 business days of your order being placed
• Custom orders may take longer than regular shipping times but will have information about shipping time on the listing
• We take extra care in packaging your orders to ensure you quality parts arrive safely
• PRP accepts no responsibility for damage or loss to items/products/services from courier or shipping companies once we have received receipt for the third-party service
• All Items purchased from PRP are to be installed by a qualified mechanic at a licensed workshop
• Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy
• PRP assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use, as all our products are intended for track use only

Refund requests will be reviewed case by case. Due to numerous factors including automatic & immediate 3rd party supplier purchase orders & merchant fees imposed on us, you might be liable to cover an unavoidable restocking/cancellation fee of ≥ 5%. Please review your purchase and consider contacting us for an ETA before placing an order. If your order is for a gearbox, specific turbocharger, engine build, manifold or something generally not in our extensive inventory, this restocking fee is based on the supplier and not dictated by PRP.

• Effective September 2024, refunds will not be provided for change of mind, incorrect choice or custom ordered products.
• Exchanges or refunds for items and customers that are categorized and applicable under the Australian Consumer law, requires the product/s remain unused and returned in original packaging in saleable condition at your expense to our HQ in Australia. They must return in reasonable time. PRP justifies reasonable to 60 days from date of purchase.
• If items are damaged due to courier or otherwise neglect outside of your or PRP's control, you must notify PRP within 14 days of receipt or the claim is void.
• Platinum Racing Products is not liable for refunds or replacements due to lost or stolen property. We will however attempt every effort to assist in the recovery of your goods.
• We reserve the right to offer you a full or partial refund which can be applied over staged or full payment/s within a 30 day period. 
• You agree that if you select "Authority to Leave" or similar, you waive the liability from the shipper (as per their line agreement) and Platinum Racing Products. As such, we strongly suggest sending your package to an address where someone will be available to sign for the goods and keep them secure.
• Anodizing is done in house with state of the art equipment and we hold stock of most popular colour's. We anodize generally within 48hrs. No refund nor partial will be provided if your request is inside the 48hr period and you require urgent parts however we will always do our best to meet your needs.
• There is no partial or full refunds on shipping where factors are outside of PRP's control. Any shipping estimates are to be considered estimates only.
• Silicone Hose Kits: Please note that our silicone hoses have been designed and tested for the vehicle models mentioned. They may fit other vehicles with the same engine model, however the purchase and installation is at your own risk. Due to extensive model changes throughout the years, we are unable to supply or customize hoses in alternative lengths or sizes beyond what is offered. The kits might not contain every hose you want, but we have made every effort to include the series changes to cover the majority of needs. This means we might include hose/s that don't suit your series as a bonus. We strongly advise that you carefully review all photographs provided before making your purchase. PRP does not offer refunds or partial refunds for hoses that are not included in the kit unless they are explicitly shown in the photographs and missing from your delivery.

Warranty Policy

• Warranty is for a full refund or exchange provided the item was purchased through PRP or one its approved resellers or workshops.
• Warranty is void if you tamper with products or bring them back in a different state to which they were sold to you.
• Warranty does NOT cover costs of shipping to and from in any circumstance.
• All Items/Products/Services purchased from Platinum Racing Products are to be installed by a qualified mechanic at an approved workshop and ALL warranty claims are dependent on proof of appropriate installation and verification of failure.
• Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy.
• Platinum Racing Products assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use. All our products are sold and intended for track use only.
• Lifetime warranty refers to certain Platinum Racing Products branded components and generally does not include 3rd party suppliers and their parts. Manufacturer warranty applies to items including but not limited to alternators, turbochargers, electrical sensors, ECUs and associated parts, tyres, etc.
• Due to customer and external components not supplied by PRP, flat drive oil pumps and components are limited to 1 yr warranty with specific cases reviewed before honoring. Spline drive will remain to have lifetime warranty, but again only after specific review.
• All refunds and warranty claims are based on back to base review and parts will need to be returned to HQ for assessment unless otherwise arranged.