GMC is offering a new engine breathing upgrade for the 2025 GMC Sierra 1500, opening up the 6.2L V8 with a new Performance Air Intake System.

Some 2025 GMC Yukon and 2025 GMC Yukon XL SUVs are included in an emission recall issued by GM in which the Performance Air Intake may be missing equipment.

Of course, with our Double-Shot Water-Methanol injection system activated, the Duramax squatted and laid down 402 hp and 682.3 lb-ft at 32 psi with only a 50-degree increase (1,326 F) in EGT. Do ...