Continuing on the success of our Ecotec timing chain guide, we have decided to bring the same material and upgrades to the Sonic and Cruze. Our 1.4L upgraded timing chain guide is made from a single machined piece of slick oil-impregnated material that strengthens the stock timing chain system. The tensioner guide is machined from the same material, eliminating the stock two-piece sliding design. Find them both under Sonic/Cruze - Camshafts & Valvetrain. | ZZPerformance.com