2023 GMC Sierra 1500 Custom Build

THE BUILD: 2023 GMC SIERRA 1500

Hear It Before You See It

This 2023 GMC Sierra 1500 build is all about how it sounds and how it finishes. At its heart is a Borla S-Type cat-back exhaust system—mandrel-bent T-304 stainless steel engineered to free up flow and wake up the Sierra's V8 with Borla's signature aggressive note. The S-Type hits that sweet spot: a deep, purposeful growl under throttle, with minimal drone when you're just cruising the highway.

Capping it off is a set of carbon fiber exhaust tips that give the back end a premium, performance-minded look to match the sound. The full stainless construction is built to shrug off rust and heat for the long haul, backed by Borla's industry-leading warranty. Here at Xtreme Truck & Auto Center, dialing in the right exhaust is one of our favorite upgrades—come hear this Sierra in person and let's start spec'ing yours.