GM Debuts Its New New 8.3L "Mongoose" Duramax, We Test General's Grabber A/TX, And MORE At Off-Road Xtreme!

Preview text: The new Duramax will produce a massive 555 horsepower and 1,230 lb-ft of torque.

Friday, Sep 25, 2026 at 3:19 PM EasternActiveCampaign

Off Road XtremeGM Debuts Its New New 8.3L "Mongoose" Duramax, We Test General's Grabber A/TX, And MORE At Off-Road Xtreme!

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Subject: GM Debuts Its New New 8.3L "Mongoose" Duramax, We Test General's Grabber A/TX, And MORE At Off-Road Xtreme!
Preview text: The new Duramax will produce a massive 555 horsepower and 1,230 lb-ft of torque.
From: newsletter@offroadxtreme.com
Brand: Off Road Xtreme
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Sent: Fri Sep 25, 2026, 3:19 PM ET
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From: Off Road Xtreme <[email protected]>
Subject: GM Debuts Its New New 8.3L "Mongoose" Duramax, We Test General's Grabber A/TX, And MORE At Off-Road Xtreme!
Date: Fri, 25 Sep 2026 14:19:17 -0500
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