SKU: 70032307954

FST-R, WALBRO GSS342, AEM 50-1200/50-1000, PUMP NOT INCLUDED

Sale price$199.32 Regular price$221.47
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Description

FST-R, WALBRO GSS342, AEM 50-1200/50-1000, PUMP NOT INCLUDEDRADIUM FST R FEATURES Full CNC aluminum construction with O ring sealed interfaces Anodized for compatibility with all fuel types Integrated adjustable fuel pressure regulator with 1: 1 vacuum reference Interchangeable regulator orifice sizes to match output of different pumps Nickel Plated Electrical Connector with 24" Flying Leads Assembled with stainless steel hardware Three 6AN male fittings (8AN can be purchased separately) RADIUM FST R The FST R

RADIUM FST-R FEATURES
-Full CNC aluminum construction with O-ring sealed interfaces
-Anodized for compatibility with all fuel types
-Integrated adjustable fuel pressure regulator with 1:1 vacuum reference
-Interchangeable regulator orifice sizes to match output of different pumps
-Nickel-Plated Electrical Connector with 24" Flying Leads
-Assembled with stainless steel hardware
-Three 6AN male fittings (8AN can be purchased separately)

RADIUM FST-R
The FST-R (Fuel Surge Tank–Regulated) is an all new design that houses a single internal fuel pump and has an integrated fuel pressure regulator machined into the top cap. The high-flow regulator is adjustable and features interchangeable orifice sizes. This revolutionary idea eliminates the need for an external fuel pressure regulator along with the extra fittings and hoses. This simplifies the installation, reduces overall cost, reduces weight, and eliminates potential leak points in the fuel system. Furthermore, this system permits cooler fuel temperatures as the fuel is not returning from the hot engine bay. Like all Radium fuel surge tanks, this universal product can be used on any fuel injected application and is compatible with all fuel types.

The FST-R can be configured with all 39mm fuel pumps from many leading manufacturers. Note: The FST-R is not available in dual-pump configurations. If the pump is purchased as part of the FST-R, the surge tank will come fully assembled and will be pressure tested for leaks and ready to be installed. If the pump is purchased elsewhere, some assembly will be required.

The side port is the regulated pressure output and is plumbed directly to the fuel rail(s). No additional fuel pressure regulator is required. Pressure adjustment is done using the adjustment screw located on the top cap of the regulator unit. A vacuum line hooks up to the nipple on the FST-R to achieve 1:1 vacuum reference. Note: returnless fuel systems commonly use a constant fuel pressure. In this case, the vacuum reference hose is not required.

The FST-R is no taller than a standard fuel surge tank with hoses installed.

Two interchangeable orifices are included with calculated flow diameters to match the fuel pump flow to the regulator. Furthermore, this added precision will resist diaphragm flutter and optimize pressure stability.


A fuel pressure gauge is needed in order to set and monitor fuel pressure and should be located along on the output line or at the fuel rail. The Radium universal fuel pressure gauge is perfect for this duty.

For the 20-0368-00 Ti Automotive E5LM FST-R, a 20-0598 check valve is included to prevent backflow.

Shipping Notes
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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: 70032307954

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jociee
Phoenix, US
★★★★★ 5
Pretty good
Flavor Name: Fruit Punch, Size: 20 Fl Oz (Pack of 6)
I like these because they're reduced sugar . You still get your electrolytes and they have a good mixed fruit flavor. I been buying these alot lately I like the rain berry most. It's a good deal here on Amazon and it hydrates better than water alone . They have a few flavors to choose from in this line so there's def variety.
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Reviewed in the United States on April 12, 2026
M
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Michael
Lake Worth, US
★★★★★ 5
Lower sugar and no dyes finally, also tasty
Flavor Name: Fruit Punch, Size: 20 Fl Oz (Pack of 6)
This gatorade lower sugar fruit punch is good. Thank goodness no dyes and lower sugar finally! Tasty and it's a pretty good price.
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Reviewed in the United States on May 12, 2026
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 5
Love the Fruit Punch Flavor!
Flavor Name: Fruit Punch, Size: 12 Fl Oz (Pack of 12)
This fruit punch flavor diminished the overly sweet stevia taste. In addition to hydrating after activity, I use it as a low calorie sweet treat. I don't use artificial sweeteners. I drink still and sparkling water but I enjoy a sweet drink too.
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Reviewed in the United States on May 28, 2026
S
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S-Huston
Chelsea, US
★★★★★ 4
Not to shabby
Flavor Name: Fruit Punch, Size: 12 Fl Oz (Pack of 12)
It’s OK the taste is better than G2 but worse than regular Gatorade. I wish they had more flavor variety, but I like that the sugar content is lower and you’re still getting all of the beneficial ingredients like the electrolytes. They are packaged well in nice bottles that don’t leak but are still easy to open overall I like them just wish they could find a way to make the flavor a little more potent so it doesn’t taste like regular Gatorade that’s been watered down.
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Reviewed in the United States on March 30, 2026
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Verified Purchase
Anonymous
San Leandro, US
★★★★★ 5
Great taste without the sugar overload
Flavor Name: Fruit Punch, Size: 20 Fl Oz (Pack of 6)
picked up a pack of Gatorade’s lower sugar drinks and honestly wasn’t expecting much, but they surprised me. The flavor is still really good—doesn’t taste watered down like some “light” drinks do—and it’s not overly sweet, which I actually prefer. You still get that classic Gatorade taste and the electrolytes, just without all the sugar overload. It’s a solid option if you’re trying to cut back but still want something refreshing after work, workouts, or being outside. Overall, it hits a nice balance between taste and being a little healthier. Definitely something I’ll keep buying. Wish they had more flavors available
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Reviewed in the United States on April 20, 2026

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