Radium Engineering Rear Clamshell Shim Kit for Lotus Exige (All)

Radium Rear Clamshell Shim Kit - Lotus Exige (All)

Application: Lotus Exige / Exige-S
Part Type: Rear clamshell shim kit
Part Number: 20-0055

This Radium kit replaces the factory Lotus Exige steel body shim spacers with a permanently secured, lightweight alternative. The factory shims are taped to the rear subframe and easily lose adhesion and alignment with the four trunk-mounted through holes – they can slip out from under each other and get lost.

Radium shims are laser cut from 5052 aluminium plate, media blasted and anodised black, and each is held in place by a flat countersink screw and locking pinch nut. The included manual covers rear clamshell removal, shim installation and further modifications that cut future removal time to 10 minutes or less.

Key Features

• Permanently Secured: Countersink screw and locking pinch nut – no tape, no lost shims
• Lightweight: 73% weight saving over the factory steel shims
• Durable Finish: Media blasted and black anodised 5052 aluminium
• Detailed Manual: Covers clamshell removal and quicker future removal

What's Included

• 4x Laser-cut anodised aluminium body shims
• 4x Stainless steel countersink M6 screws
• 4x Conical top M6 oval locking pinch nuts
• Detailed installation instructions

Important Notes

• Shim thickness is consistent but may vary slightly from the factory shim stack – no noticeable difference in body fitment
• Initial clamshell removal takes approximately 1.5–2 hours; with the modifications in the manual this can be reduced to 10 minutes or less
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Lotus Exige / Exige-S (Radium instructions cover 2006+ models)

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.