The 2.0L ECOtec DI Turbo LNF motor makes impressive power rather easily, as any owner of a Cobalt SS, Sky Redline, Solstice GXP or HHR SS knows. But what happens when impressive isn’t enough? You want stellar, outstanding, stupendous and astonishing power! At that point, you have to start thinking hardware. One piece of engine hardware that will make sure you and your engine stay in one piece while at the track is a set of forged aluminum slugs to replace the cast aluminum ones that the factory fits to each LNF engine.