SKU: 94016315663

FUEL SURGE TANK KIT, EVO 8-9, FST SOLD SEPARATELY

Sale price$151.17 Regular price$167.97
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Description

FUEL SURGE TANK KIT, EVO 8-9, FST SOLD SEPARATELYThis comprehensive installation kit includes everything needed to install a Radium fuel surge tank with a single 39mm fuel pump in a Mitsubishi Lancer Evolution 8 9. The kit was not designed to work with the Radium MPFST. All Radium FSTs are CNC machined from aluminum. They are fully anodized and use PTFE insulated wiring, submersible hose, etc. to make them alcohol (ethanol methanol E85) compliant. The Mitsubishi Evolution 8 9 install kit locates the

This comprehensive installation kit includes everything needed to install a Radium fuel surge tank with a single 39mm fuel pump in a Mitsubishi Lancer Evolution 8-9. The kit was not designed to work with the Radium MPFST.

All Radium FSTs are CNC machined from aluminum. They are fully anodized and use PTFE insulated wiring, submersible hose, etc. to make them alcohol (ethanol/methanol/E85) compliant. The Mitsubishi Evolution 8-9 install kit locates the FST in a collision-safe area of the trunk, centered behind the rear seat.

This allows for the majority of the trunk space to still be useable. The aluminum bracket solidly mounts to the V-brace in front of the rear seat carpet cover in the trunk. The FST with black anodized bracket is isolated through the OEM carpet cover (shown below) to reduce fuel pump noise and vibration.

Also included are wiring components with flying leads featuring Raychem solderless butt splices, and a weatherproof fuse and relay to drive the FST's fuel pump. Wiring is very simple and takes less than 30 minutes to assemble. No soldering is required.


Included are four -6AN PTFE hoses which are cut to length and preassembled.


EVO 8-9 FST Install Kit Features:

-Preassembled -6AN PTFE Hoses
-Aluminum Mounting Brackets
-AN and OEM Style Adapter Fittings
-Stainless Steel Hardware
-Barricade Hose, non-permeating
-Wiring Components with Relay and Fuse
-Solderless Heat Shrink Connectors

NOTES:
If a Radium Engineering dual internal pump FST is required, this can be achieved. However, the plumbing and electrical in this kit was designed for 1 pump. Simply choose a FST with dual pumps to use with this EVO install kit. Also pickup a DIY harness as well for the electrical required to drive the second FST pump. Lastly, you will need to plumb a second hose from the FST to the fuel rail. These PTFE hoses can be helpful.

If a Radium FST-R is required, this can be achieved. However, the plumbing in this kit was designed to reuse the OEM Mitsubishi FPR. One of the hoses in this kit will not be used and the OEM 1/4" rubber FPR return hose will need to be either removed, drained, or plugged. Furthermore, the FPR vacuum hose will need to be extended to the trunk.

Neither of the two scenarios above are covered in depth in the instruction manual. Contact Radium for more details.

Lastly, due to the restrictive return port on the OEM fuel pump housing, a slightly higher static fuel pressure is normal when using a high flow pump. To alleviate this issue, the OEM venturi jet pump in the return port can be modified to alleviate the restriction and promote fuel flow back into the OEM fuel tank. This is noted in the instruction manual.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 94016315663

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The happy baker
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★★★★★ 5
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Size: Medium, Color: (001) Black / Black / Pitch Gray
Awesome socks. Has little gel pad on top of heel for no slip. Thin and comfortable. Previously Purchased at Nordstrom rack and no longer in stock. Happy to find here Note: Will shrink a little best to air dry
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Reviewed in the United States on April 16, 2026
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kkl
Draper, US
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
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Reviewed in the United States on May 15, 2026
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Anna Wylda
Chelsea, US
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
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Reviewed in the United States on August 1, 2025
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Rebekah
Boise, US
★★★★★ 5
Love!
Size: Large, Color: (100) White / White / Mod Gray
Ive tried so many no show socks but I love these. This is the 3rd set I've bought. They never slip off and the material is thin and breathable. Perfect for working out.
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Reviewed in the United States on March 2, 2026
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Becky
Alexandria, US
★★★★★ 5
True no-show socks that don’t slide down!
Size: Medium, Color: (100) White / White / Mod Gray, Size: Medium, Color: (100) White / White / Mod Gray
This is the first pair of no-show socks I’ve tried that actually don’t slide down into my shoes. Trust me… I have tried lots of different pairs and this is the one! They fit perfectly. They’re not too thick and they’re obviously durable because I wash them after each wear, so daily.
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Reviewed in the United States on March 21, 2026

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