seems like it helped a little, seems like it takes a little less throttle to get going. I wasn't expecting too much, but for a cheap mod I'd recommend it.
But with that mod, superchips 91 tune, headers, ecutout, 14x3 cleaner & a couple other mods its getting hard to tell a diff. My truck certainly has some get up & go & sounds good, but I think I've hit the max I can get...lol Pretty much done all the "cheap" mods that I can.
I don't think it'll be worth it with all the money, work & trouble involved with mods where I gotta take my engine apart like cam, heads, etc...I think that TB mod will be my last engine/performance mod. Maybe try an SCT Tuner some day to replace my superchips..