2005-2008 Dodge Magnum R/T & SRT-8 Hemi 5.7L 6.1L V8. 2008-2010 Dodge Challenger R/T & SRT-8 Hemi 5.7L 6.1L V8. The air intake kit can help your engine to draw in more cold air resulting in better throttle response and higher explosive horsepower output.