NGK Iridium IX LTR6IX-11 Spark Plugs (Set of 16) (2011+ 6.4L) Pads & Rotors This mid-pipe is designed with

This mid-pipe is designed with mandrel bent aluminized steel for great exhaust flow

Double-Wall Polished Tips with SLP's Logo

and the premium grade Pro Series

The system comes with both a Pro DRY S and Pro 5R performance air filter

along with rigorous quality standards

NGK Iridium IX LTR6IX-11 Spark Plugs (Set of 16) (2011+ 6.4L) Pads & Rotors This mid-pipe is designed withPart#: LTR6IX 11 6509 The Spark Plug Serious Enthusiasts Rely On. Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. NGK iridium plugs represent the ultimate evolution of spark plug technology and performance. The iridium center electrode is both stronger and harder than platinum. This allows NGK engineers to design an ultra fine (0. 6mm) center electrode