Radium Engineering Accessories

Vivid Racing carries many accessories for the exterior of you car. Hood Pins, Hood Dampeners and more. If you don't see what your looking for, please contact us at 1-480-966-3040.


Radium Engineering is an aftermarket automotive company located in the Pacific Northwest that designs and produces quality performance products. A team with personal passions for innovation leads Radium towards advancement in the industry.

With thorough research and development utilizing state of the art equipment, Radium designs all products in-house with the goal to enhance the driving experience and solve problems that keep vehicles from reaching their full potential. Extensive testing and evaluation ensures the durability and integrity of Radium products exceed consumer expectations.

Currently, Radium manufactures an expanding collection of motorsport parts and accessories for high performance and racing focusing on thier revolutionary fuel surge tank line. An ever expanding collection of application specific parts are also being created. Please contact Radium for more information.

View all Radium Engineering Accessories products

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 Radium Engineering Modular Rear Clam Kit Titanium Lotus Elise 2ZZ-GE 05-13 

Model Number: 20-0051-00   View Price

This kit is designed to make the removal of the 2005+ Lotus Elise rear clamshell quick and easy. The contents of this kit when combined with a few modifications, makes the clamshell removal in less than 10 minutes. With the clamshell off, engine service is performed easily, reducing the labor costs for repair work. Part of the modification process is to separate the deck lid hinge mounting points from the firewall. The included hinge brace adds structure back into the hinge support member after ...
  
 Radium Engineering Modular Rear Clam Kit Black Lotus Elise 2ZZ-GE 05-13 

Model Number: 20-0051-01   View Price

This kit is designed to make the removal of the 2005+ Lotus Elise rear clamshell quick and easy. The contents of this kit when combined with a few modifications, makes the clamshell removal in less than 10 minutes. With the clamshell off, engine service is performed easily, reducing the labor costs for repair work. Part of the modification process is to separate the deck lid hinge mounting points from the firewall. The included hinge brace adds structure back into the hinge support member after ...
  
 Radium Engineering Modular Rear Clam Kit Green Lotus Elise 2ZZ-GE 05-13 

Model Number: 20-0051-02   View Price

This kit is designed to make the removal of the 2005+ Lotus Elise rear clamshell quick and easy. The contents of this kit when combined with a few modifications, makes the clamshell removal in less than 10 minutes. With the clamshell off, engine service is performed easily, reducing the labor costs for repair work. Part of the modification process is to separate the deck lid hinge mounting points from the firewall. The included hinge brace adds structure back into the hinge support member after ...
  
 Radium Engineering Rear Clamshell Shim Kit Lotus Exige 04-13 

Model Number: 20-0055   View Price

This kit was designed to replace the factory Lotus Exige steel body shim spacers with a permanently secured lightweight alternative. The factory Lotus shims can be a nuisance if the clamshell is removed frequently. Because the shims are taped to the rear subframe, they easily lose their adhesiveness and alignment with the 4 trunk mounted through holes. They can also slip out from underneath each other and get lost. This kit fixes these problems by permanently securing the Radium shims with a fla...
  
 Radium Engineering OEM Location Coolant Expansion Tank Kit Lotus Elise 04-14 

Model Number: 20-0039-01   View Price

The Radium Coolant Expansion Swirl Tank features three ports that use -6AN to 9/16-18 O-ring adapters (not tapered pipe threads) for a positive seal. The main tank is a 2-piece design constructed of cast aluminum. The two halves are welded together along with a CNC billet aluminum cap receiver which mates to any standard 32mm "import" style pressure cap. The Radium Engineering tank also has a swirl feature. Pressurized coolant is sent into the vortex chamber's inlet tangentially and accelerat...
  
 Radium Engineering Firewall Mount Mount Coolant Expansion Tank Lotus Elise 04-14 

Model Number: 20-0039-02   View Price

The Radium Remote Mounted Coolant Swirl Tank is commonly required for custom Lotus applications such as engine swaps, turbocharger kits, etc. where the OEM expansion tank is no longer in an ideal location. The Radium Coolant Expansion Swirl Tank features three ports that use -6AN to 9/16-18 O-ring adapters (not tapered pipe threads) for a positive seal. The main tank is a 2-piece design constructed of cast aluminum. The two halves (shown below) are welded together along with a CNC billet aluminu...
  
 Radium Engineering OEM Location Coolant Expansion Tank Kit Lotus Exige 04-14 

Model Number: 20-0039-01   View Price

The Radium Coolant Expansion Swirl Tank features three ports that use -6AN to 9/16-18 O-ring adapters (not tapered pipe threads) for a positive seal. The main tank is a 2-piece design constructed of cast aluminum. The two halves are welded together along with a CNC billet aluminum cap receiver which mates to any standard 32mm "import" style pressure cap. The Radium Engineering tank also has a swirl feature. Pressurized coolant is sent into the vortex chamber's inlet tangentially and accelerat...
  
 Radium Engineering Firewall Mount Coolant Expansion Tank Lotus Exige 04-14 

Model Number: 20-0039-02   View Price

The Radium Remote Mounted Coolant Swirl Tank is commonly required for custom Lotus applications such as engine swaps, turbocharger kits, etc. where the OEM expansion tank is no longer in an ideal location. The Radium Coolant Expansion Swirl Tank features three ports that use -6AN to 9/16-18 O-ring adapters (not tapered pipe threads) for a positive seal. The main tank is a 2-piece design constructed of cast aluminum. The two halves (shown below) are welded together along with a CNC billet aluminu...