got one installed over weekend at sizzler event. wow it sounds like an f-15 taking off inside cab, that tells me stock setup very restrictive, dont know if im seeing things but my egts seemed to drop about 50-75 degrees at full throttle and steady driving. sounds very healthy. no turbo lag at all seems to spool up faster. put my volumizer on high and the truck just screamed smoking the tires, the tube made a difference. 
