2019 GMC Sierra AT4's Off-Road Performance Package Actually Adds Power - The Truth About Cars

If you need to get somewhere off the beaten path just that much more quickly than The Other Guy – or maybe you simply want to one-up your neighbor and their new Sierra AT4 – GMC has an answer for you.

Despite being only about three seconds old, The General is already throwing a new package at the 2019 Sierra. Meant to layer on top of the off-road focused AT4 trim, this new option adds even more horses to the hand-of-god 6.2-liter V8.

And, for once, buyers actually save money by selecting the option package. Speed normally costs money – but not this time.

GMC says the Sierra AT4 Off-Road Performance Package has an MSRP of $4,940. For such a sum, owners will find themselves in possession of 15 extra horsepower and 9 lb-ft of torque, bringing output of the 6.2L to 435 hp and 469 units of twist. Bundled in the package are the 6.2L engine, GM’s cat-back performance exhaust system, and a performance air intake. A set of 275/65/18 Goodyear Wrangler M/T DuraTracs are part of the deal as well.

Breaking things down, those rubber hoops are available as a stand-alone option for just $295, which is a pretty good price all on its own. The performance air intake will set a buyer back $695 if they order it a la carte, while the cat-back performance exhaust system costs $1,595 all by itself.

Basic math teaches us that these items, already available on the GMC menu, tot up to $2,585. This means those who check the new AT4 Off-Road Performance Package option box are shelling out $2,355 for the hi-po “six-two.” If selected as a solo item, the stock 6.2L V8 adds $2,495 to the truck’s bottom line.

Save $90 and get more horsepower? We think that’s a good deal.

Introduced along with the rest of its high-trim models earlier this year, the AT4 is intended to compete with the Ram Rebel and its own half-brother, the Silverado Trail Boss. It has a 2-inch lift and a few skid plates right from the factory, along with off-road-tuned Rancho monotube shocks and a locking rear diff.

Unlike the Ram Rebel, whose styling suggests it constantly THIRSTS FOR BLOOD, the AT4 is content with its black-chrome finishes and color-keyed body accents. Take note: a Chevy Truck rep told me earlier this year that the Trail Boss gear can be dealer-installed on any trim Silverado, so it stands to reason the same applies to the Sierra and its AT4 equipment. If you want a Denali with a factory lift, go for it.

The Sierra AT4 Off-Road Performance Package is available now.

[Image: General Motors]

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