The X charger uses the factory rubber pipe and a custom airfilter. The supplied tune only works with that filter setup...the Steeda looks similiar but will not work with the tune that comes with the kit. If you fab your existing K&N, plan on some dyno time and a custom tune.
__________________ Xcharger with water injection, JBA headers
JBA duals with an H pipe, Roush rear springs, Che K member brace with torque limiters, Cervini's quarter window deletes, Canton polished expansion tank, Roush scoop, Street Scene Elenor grille, custom GT500 chin spoiler, PJ rear louvers, Black rear spoiler, BSM custom stripes, Hurst shifter, Billet interior trim, custom door welts, Autometer dash pod, AEM wideband, Autometer boost & Fuel pressure gauges | 
2008 mustang v6 supercharging & air intake concern 
