FPR KIT, 08-21 SUBARU STI, GREEN
SKU: 7490293278

FPR KIT, 08-21 SUBARU STI, GREEN

Sale price$93.60 Regular price$104.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

FPR KIT, 08-21 SUBARU STI, GREENThis kit is designed for use in the USDM 2008 2021 Subaru WRX STi (EJ257 only) and replaces the OEM fuel pressure regulator and damper assembly, shown below. The factory STi fuel line routing uses a quasi dead end system that circulates fuel through the regulator, bypassing the engine. Fuel is only routed to the engine when there is demand. The Radium FPR kit replaces the factory regulator and re routes fuel to cycle through the engine's rails before

This kit is designed for use in the USDM 2008-2021 Subaru WRX STi (EJ257 only) and replaces the OEM fuel pressure regulator and damper assembly, shown below. The factory STi fuel line routing uses a quasi dead-end system that circulates fuel through the regulator, bypassing the engine. Fuel is only routed to the engine when there is demand.

The Radium FPR kit replaces the factory regulator and re-routes fuel to cycle through the engine's rails before reaching the regulator and returning to the tank. This is the preferred fuel line routing by Subaru tuners trying to address stumbling issues. The Radium Fuel Pressure Regulator offers adjustment from 20psi-up with a 1:1 vacuum reference. Interchangeable orifices allow the user to tune the regulator for any fuel pump flow.

The kit installs in the same location as the OEM fuel pressure regulator. Also included are vacuum hose and fittings to re-route the vacuum reference line from the #4 cylinder runner to the intake manifold plenum for a more stable vacuum signal. The optional pressure guage kit 20-0386 can be installed into the unused 8AN ORB port on the regulator.

Also available are 2 options for the fuel pressure regulator top color. The green variation (20-0265-01).

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7490293278

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elbap
Bozeman, US
★★★★★ 5
Quality craftsmanship
Color: Brown
Great design , love it so far has plenty of room
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Reviewed in the United States on May 26, 2026
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Mark Sbrochi
Louisville, US
★★★★★ 5
Good, Functional Wallet
Color: Black
Good, functional wallet for the money.
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Reviewed in the United States on June 2, 2026
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Willis A. Allen
Carnegie, US
★★★★★ 5
Outstanding Wallet
Very good Wallet Nice leather looks very nice and was easy to break in. I carry it in my front pocket and it is not to bulky. Holds a lot of card and has two pockets for cash.
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Reviewed in the United States on April 12, 2026
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Rocky Cronkhite
Natrona Heights, US
★★★★★ 5
Great product
Color: 3675 Silver Blue, Color: 3675 Silver Blue
This watch is beautiful. And feels great
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Reviewed in the United States on March 8, 2026
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JJ
Port Orchard, US
★★★★★ 1
Junk!
Color: 3675 ALL Silver
Good luck getting the back plate back in once you change the battery! You get what you pay for so spend the extra money and buy a better watch not made in China.
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Reviewed in the United States on May 25, 2026

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