This is my roll-on run against the Shift-S3ctor Z06 at the back straight at Big Willow. Same car that ran me dead even at the Coalinga Airstrip Attack.
The Z06 recently installed long tube headers and as you can see, made a nice difference!
Conditions were interesting...very cold ~ 30 deg F so I was running with MDM on...which helped with traction on the initial hit but caused a delay in all the upshifts. Traction control light was flickering until after the 3-4 upshift
Not sure if the Z was spinning a bit but is very possible given the conditions.
The Z is definitely quicker now and I will need another mod or two (or more) to keep up!