Thanks for the info RM.
I know it's a TRD SC, but I didn't phrae my question well enough. Did the SCs come direct from the factory on new vehicles. That's what the salesman led me to believe about this one? And if so, is there any way to tell if this vehicle was equiped with the SC off the lot?
And if the factory installed the SC do you suppose any fuel mods were added as well...is there a way to see if any fuel mods have been done - like a tell-tale sign when I'm looking in the engine compartment?