• 15+ Years of Performance Parts, Tuning & Installation

STM Lightweight PC925 Battery Kit for Evo X

  • Backed by real installs and tuning experience at FAST of West Chester
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$330.00
$330.00
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The STM Odyssey PC925 Battery Kit for Evo X is perfect for street cars and fits cleanly in the stock location dropping 11 pounds from the rear of the car. Installs in just minutes and fits perfectly behind the stock trunk panels.

The full kit includes an Odyssey PC925 battery with new terminals and install hardware. Please note we cannot ship batteries outside the continental USA, so the install kit is also available separately without a battery.

Vehicle Fitment:
2008-2015 Mitsubishi Lancer Evolution X

Also Available:
 Evo X 680 Small Battery Kit

Stock Battery Weight: 35.65 pounds
STM-BATK-EVOX-PC925 STM Battery Kit with Odyssey PC925 and Terminals 24.20 pounds
11.45 lighter than stock
STM-BATK-EVOX-TD-925 STM Battery Tie Down Kit (Battery is not included)

Features:
• 11 Pounds Lighter than Stock
• Quick and Easy Install
• Fits Behind Factory Trunk Panels
• Stock Location Mounting

Performance Notes and Warranty:
STM does not warranty batteries. We offer the STM Lifetime Guarantee on the STM Battery Tray, but we cannot warranty the batteries themselves and any attempt we have made to have them warrantied by the manufacturer has been denied. The typical life we get from one of these batteries varies from 2 to 10 years. Expect to treat this battery as a maintenance item - once it's done, just get a new one.

For a typical 300-600 HP street car, it's fine to sit for 2 weeks to a month, drive and race on the weekends or drive everyday in nice temperatures (40-90°). If it sits longer than 3 weeks or if it's in freezing temps, we recommend keeping the charger handy. This lightweight car battery will handle normal audio systems, a subwoofer and mild accessories like lighting or alarms. It's probably not suited for additional amps or more than one sub.

We have not encountered any performance issues with cranking. These 925 batteries are significantly more powerful than the smaller 680 and honestly these 925's make a great lightweight option for a daily driven street car. Read more about the battery:
• Odyssey PC925 Battery

STM Install Kit Includes:
(1) STM Engraved Tie-Down Bracket
(2) "L" Mounting Brackets
(2) 1/4-20 Stainless Wing Nuts
(2) M6 Stainless Flat Washers
(2) M6 Stainless Lock Washers

Install Notes:
The longer "L" tie-down is used in the rear base (closest to the seats) of the battery tray. One is just a touch longer than the other.

Previous Part Numbers: STM-EVOX-BATK2-PC925-BR, STM-EVOX-BATK2-PC925-BK, STM-EVOX-BATK2-BR, STM-EVOX-BATK2-BK, STM-EVOX-BATK2-C925-BR, STM-EVOX-BATK2-C925-BK

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STM Lightweight PC925 Battery Kit for Evo X

$330.00

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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