The factory mod kit sent you pies, domes and a recruved ecm.
THATS IT.
the rst of the stuff like the airbox was just bs,., most mods were run with the stock box as it has better response and flows plenty.
the mods kits were best in 08 worse in 09 and JUNK in 2010.
Doo finaly pulled their collective heads out of their u know whats and LOWERED the port iming 6 degrees for 2011 !!!
YEAH !!!
The teams that built real mods used 04 ho 600 cylinders, THEN machined the bottoms .050 and then re worked just the trans ..those tpyes with 08 pipes ONLY made 155 + hp with 15.5 comp..@8400-8700.
09 2010 pipes lost 10 hp and had no low mid hit at all...junk.
baiscally you are buying domes and pipes,, you dont want the ecm and th silencer is much to loud..
Gus
BSP