Air and Fuel› Fuel Cells, Tanks and Components

JBR

51R Small Battery Box

$129.99

SKU: MS3-BTRY-BOX-1

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The JBR 51R Small Battery Box is a performance-enhancing component for the 2010-2013 Mazdaspeed 3, essential for those planning significant power upgrades. This design provides unrestricted access to key engine components such as the turbo, turbo inlet pipe, boost control solenoid, or wastegate actuator, eliminating the need to remove the battery for maintenance or adjustments. A unique feature of this JBR battery box is its integrated ECU mounting location, which preserves the factory orientation. This means no modifications are required for the wiring harness when attaching the ECU, which is vital for maintaining a clean installation for dealer visits or resale purposes. Manufactured in the USA, the battery box tray measures 5.5″ x 9.5″ and includes all necessary mounting hardware and installation instructions. JBR also includes their Hassle-Free Lifetime Warranty with this product.

MIA's Description

The JBR 51R Small Battery Box is designed for the 2010-2013 Mazdaspeed 3. This battery box increases room for larger intakes and is compatible with a full-size battery. It also features a unique mounting location for the ECU, maintaining its OEM orientation.

Fitment

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Specifications

BrandJBR
Part NumberMS3-BTRY-BOX-1
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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