Originally Posted by zirotti
Has there been any documented increases in performance or is this mainly for sound/"driver experience"?
We did some testing on a 100% stock ZL1 with nothing but the Roto-Fab intake installed and made a solid 31hp over stock. Mind you, this test was done with the hood up, but I have no doubt that complimented with the Big Gulp; you would see those gains at speed.
Here is the dyno graph:
Feel free to call, PM or email me with questions.