Wagler Competition Products

Your awesome Duramax truck is more than capable of making a ton more horsepower and torque with even the most basic modifications and tuning, but that doesn't mean every part of your truck's motor can actually handle it. Wagler's lineup of Duramax engine performance parts will help your mighty Duramax hold itself together even when pushing enormous amounts of horsepower and torque. Wagler manufactures high-quality girdles, valve springs, connecting rods, push rods, and just about anything else you need to make sure your Duramax gets the reliability it actually deserves.