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Drivetrain› Differentials and Rear-End Components

Per4Mance

DIRS-G Differential Reinforcement System

$439.00 $399.00 Save $40.00

SKU: P4D-DIRS-G

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Per4mance DIRS-G is a differential integration and reinforcement system designed to reinforce your differential case and improve your car's IRS operation and traction. This two-piece system attaches the differential using three case bolts for support and integrates with the rear cross-member via an OEM differential bushing, creating a third, triangulated connection point.

The DIRS-G is constructed from American-made, CNC-machined T-6061 billet aluminum and includes an OEM differential bushing and ARP fasteners. It features a hard anodized black coating and provides access to fill and drain plugs.
Show original supplier description
The Per4mance DIRS-G is a patented Differential Integration and Reinforcement System designed to enhance the performance and durability of your vehicle's rear differential. This system aims to reinforce the differential case, improve the operation of the car's Independent Rear Suspension (IRS), and increase traction while reducing wheel hop. It's engineered as a two-piece unit: the first part supports the differential using three case bolts, while the second part attaches to the rear cross-member, incorporating an OEM differential bushing to create a reinforced, triangulated integration point. Constructed from American-made, CNC-machined T-6061 billet aluminum, the DIRS-G is built for strength and longevity. It features an OEM differential bushing and ARP fasteners, along with a P4D tool-less insert for cross-member attachment. User-reported benefits include high product quality and packaging, overall strength and robustness, improved rear-end dynamics leading to increased traction and reduced wheel hop, and notably, no increase in Noise, Vibration, and Harshness (NVH).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandPer4Mance
Part NumberP4D-DIRS-G
CategoryDrivetrain
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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