Who: DiabloSport
What: inTune I-1000 tuner for 5.3L V-8
Why: The new inTune for 2014 GM trucks includes three of DiabloSport's famous tunes—87 octane, MPG Booster, and Diablo 91+ octane. Each tune is calibrated specifically to improve performance, drivability, and fuel economy, while reducing the power-robbing factory Torque Management system.
Where: diablosport.com

Aggressive Altitude

Who: Fabtech
What: 6-inch suspension systems
Why: With arched ¼-inch-thick steel crossmembers for extra ground clearance and extended steering knuckles to retain StabiliTrak functionality, Fabtech's kit is carefully tailored to the new GM trucks. Three diferent kits are available, ranging from standard Performance Twin Tube shocks to massive Dirt Logic 4.0 coilovers for hardcore of-roading.
Where: (877) 432-2832, fabtechmotorsports.com

Clear View

Who: Brandmotion
What: Rear vision kit
Why: Backup cameras shouldn't be reserved only for those with top-of-the-line trucks. Fortunately, Brandmotion is the first to provide a solution for 2014 GM trucks. This complete package includes their OnStar-compatible replacement mirror, an integrated 3.5-inch TFT monitor, a factory-style wiring harness, and a tailgate handle camera.
Where: (734) 619-1250, brandmotion.com

Warranty-Backed Lif

Who: Pro Comp
What: 6-inch suspension systems
Why: If you want to clear 35-inch tires, give your truck a more aggressive stance, and retain factory StabiliTrak functionality, Pro Comp has the kit for you. This 6-inch kit even includes Pro Comp's exclusive Lift Shield Warranty, protecting your truck's powertrain for 5 years or 60,000 miles when you have it professionally installed.
Where: (800) 776-0767, procompusa.com

Elevation Assistance

Who: AMP Research
What: PowerStep running boards
Why: Whether your truck is stock height or riding on a big lift, AMP Research's automatically retracting PowerStep running boards make life easier. They're even LED lit and available with stainless trim for a truly luxurious feel.
Where: (888) 983-2204, amp-research.com

Light 'Em Up

Who: T-REX
What: TORCH series grille with LED bars
Why: Light up the night with three ultrabright LED lights—two 6-inch bars and one 12-inch bar. The black riveted grille design will also give your new Chevy an imposing customized look, and set your truck apart from the rest.
Where: (800) 287-5900, trexbillet.com

Smart Programming

Who: HP Tuners
What: VCM Suite software
Why: HP Tuners' VCM Suite is a comprehensive VCM/PCM programmer and parameter editor, and this impressive software now features support for the 2014 GM trucks and C7 Corvette. Now you can easily understand, alter, and fine-tune just about any aspect of your truck's electronic brain.
Where: hptuners.com

A Sound Decision

Who: Flowmaster
What: Force II stainless exhaust system
Why: Add some rumble to your truck with the tried-and-true sound of a Flowmaster exhaust. The Force II system is available in either a dual rear exit or single side exit configuration, so you can choose aggressive or subtle styling to fit your ride.
Where: (707) 544-4761, flowmastermuflers.com

Solid Steel

Who: Hellwig
What: Rear sway bar
Why: Formed from solid 1⅛-inch 4140 chromolysteel, this bar is heat-treated to a tensile strength of 180,000 psi. This means it will improve your truck's handling while withstanding just about any abuse you can dish out.
Where: (800) 435-5944, hellwigproducts.com

Sleek Security

Who: A.R.E.
What: LSII series tonneau cover
Why: The LSII tonneau's lift assist system makes accessing your cargo efortless. Also, its sleek contours and OEM-matched paint means it will fit your truck's redesigned body perfectly.
Where: (330) 830-7800, 4are.com