Radium Engineering Fuel Surge Tank Frame Rail Mount Kit for Lotus Elise/Exige

Radium Fuel Surge Tank Frame Rail Mount Kit — Lotus Elise/Exige 2ZZ-GE

Note: Fuel Surge Tank (FST) is not included. Not compatible with the Radium MPFST.

This comprehensive installation kit includes everything needed to install a Radium FST-R with a single 39mm fuel pump in a US-market 2ZZ-GE powered Lotus Elise or Exige. The kit locates the FST on the right-hand side of the vehicle — either in the engine bay near the alternator or in the trunk — and is designed for use with the Radium FST-R, which features an integrated fuel pressure regulator. No external regulator is required.

All factory fuel lines are replaced with high-quality -6AN stainless steel braided PTFE hose with a black PVC cover for abrasion protection. The kit is fully compatible with E85, ethanol, and all popular alcohol fuels, and works with both the OEM fuel rail and a Radium Fuel Rail.

Frame Rail Mount: Designed for 2004+ Lotus Elise/Exige with a non-supercharged 2ZZ-GE engine. Compatible with A/C-equipped cars and ideal when the clamshell is modular. Note: on OEM supercharged Elise/Exige models, Lotus relocated the emissions charcoal canister to this area — the canister must be removed or relocated if this FST location is used. Lotus Cup Cars do not use a charcoal canister, so the Frame Rail Mount is fully viable.

Suits: Lotus Elise 2ZZ-GE (US Market, 2004+), Lotus Exige 2ZZ-GE (US Market, 2004+) — supercharged and normally aspirated

Kit Includes:

• Pre-assembled PTFE hoses with -6AN hose ends
• Radium anodized billet 6061 aluminium fuel return adapter
• Nickel-plated frame rail or powder-coated trunk mounting bracket
• OEM-style and -AN adapter fittings
• Stainless steel hardware
• Complete wiring harness with weather-sealed relay and fuse
• Plug-and-play adapter harness for fuel pump activation trigger
• Installation instructions

Available Part Numbers:

• 20-0013 — FST Frame Rail Mount Kit, Lotus Elise/Exige 2ZZ-GE (US Market)

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet 6061 aluminium components for precision fit and long-term durability
• ✅ Trusted by tuners and race teams running high-power Lotus builds worldwide
• ✅ Bolt-on fitment — no cutting, drilling, or fabrication required; plug-and-play wiring harness included
• ✅ Stainless braided PTFE hoses fully compatible with E85, ethanol, and flex fuel applications

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.