A new exhaust can make a world of difference when it comes to driving experience. Now, Chevy Silverado and GMC Sierra truck owners with the 5.3L V8 engine up front can upgrade their pickup with AWE’s ...

Corsa Performance Exhaust Systems is offering up new cat-back pipes for full-size GM SUVs equipped with the naturally aspirated 5.3L V8 L84 gasoline engine. The aftermarket performance company is ...

Modifications for your 5.3L Vortec V8 engine are a lot like eating potato chips ... you can't stop at just one. It starts innocently enough with a cold air intake, because hey, who doesn't want better ...

Our 2011 GMC Sierra 5.3L runs ok and sounds pretty good when you roll into the throttle. But it’s not impressive with the factory exhaust. So we decided to add the sound of power with a cat-back ...

Direct Injection 5.3L L83 engines are starting to show up in salvage yards, but how do they compare to the super popular 5.3L Vortecs that have been a mainstay of LS swaps? We were a bit skeptical of ...