• 15+ Years of Performance Parts, Tuning & Installation

STM Evo 8/9 Fuel Pressure Regulator Kit

  • Backed by real installs and tuning experience at FAST of West Chester
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$395.00
$395.00
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The STM Evo 8/9 fuel pressure regulator kit includes all fittings, hardware and line to go from your factory style fuel rail outlet to the Fuelab regulator and back to the OEM return line. Includes the STM Evo fuel rail fitting for a direct fit to your factory style fuel rail and the STM Evo mounting bracket for an easy install of the regulator to the firewall. The mini Fuelab regulator is available in your choice of 6 colors and of course, the whole kit is E85 safe!

We also include the miscellaneous clamps, zipties and stainless bolts you'll need to save a trip to the hardware store. If you need PFTE tape, it's also available linked below. The included hoses are long enough any custom routing and can be trimmed to suit your setup.

Vehicle Fitment:
2003-2006 Mitsubishi Evolution VIII IX
• Unconfirmed with Evo 7 or JDM models

Features:
• Includes every part needed to bolt-in and go!
• Direct fit mounting bracket
• Direct fit fuel rail fitting
• Soft nylon braided hose will not scratch like stainless
• Silicone-filled fuel pressure gauge
• Fuelab regulator in your choice of 6 colors
• 100% E85/ ethanol safe

Install Notes:
• The blue O-rings are not needed.
• The brass NPT plug can be used if you want to plug off the gauge.
• The bracket included in the Fuelab box will not be needed.
• Thread Tape should be used on the gauge and the brass fitting.
• Do NOT use thread tape on AN fittings!
• We recommend: the PFTE Tape for the brass fitting or plug.

Included Parts: Used for Install:
(1) FL-53501-* Fuelab 6AN Mini Fuel Regulator Mounted on firewall
(1) STM-6AN-7MM STM 6AN Barb Fitting To bottom port of regulator
(1) STM-2G-FRF-6S STM Fuel Rail Fitting with Hardware To fuel rail
(1) STM-UNI-FPG STM Liquid-Filled Fuel Pressure Gauge To front of regulator
(1) STM-EVO89-FLMBRKT (1) STM Evo Mini FPR Mounting Bracket Mounts the regulator to firewall
(1) VIB-24402 6AN ORB 45° Hose End Fitting To regulator
(1) VIB-21406 6AN 45° Hose End Fitting To fuel rail fitting
(1) VIB-10992 6AN Port Plug To right side of regulator
(2) VIB-12233 High Pressure Clamps 10-12mm For push-on hose
(3') VIB-16324 3 Feet -4AN Push-On Hose FPR bottom to factory hard line
(2') VIB-11956 2 Feet -6AN Nylon Hose Between both 45° fittings
(3') FT-VB-012 3 Feet 3mm Silicone Vacuum Line FPR to boost source
(2) FAS-63122 Small 4" Zip Ties For silicone vacuum line
(1) M6x12 Bolt M6x12 Stainless Allen Bolt For the STM mounting bracket
(1) M6 Lock M6 Stainless Lock Washer For the STM mounting bracket

Old Part Numbers:
STM-EVO89-STD-FPRK-53501-1, STM-EVO89-STD-FPRK-51502-1, STM-EVO89-STD-FPRK-53501-2, STM-EVO89-STD-FPRK-51502-2, STM-EVO89-STD-FPRK-53501-3, STM-EVO89-STD-FPRK-51502-3, STM-EVO89-STD-FPRK-53501-4, STM-EVO89-STD-FPRK-51502-4, STM-EVO89-STD-FPRK-53501-5, STM-EVO89-STD-FPRK-51502-5, STM-EVO89-STD-FPRK-53501-6, STM-EVO89-STD-FPRK-51502-6

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  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved
STM Evo 8/9 Fuel Pressure Regulator Kit

$395.00

Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.

    Donald Wojnar

  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.

    Adam Cranston

  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.

    Bryce Budd

  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.

    William Brunell

  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.

    Devin Greco

Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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