[darkpuppet]

if anything, you may run into troubles because you don't have your precat in place.. however, if you get the car good and warm before doing the test, you may pull it off without issue.

I'd love to know how Focus Sport did their tune.. .if all they did was add the global spark value (and didn't touch the baseline or borderline knock spark tables), you could likely put in 89 octane and get a cleaner burn for off-WOT tests like the e-test.

OF course, FS is a competent tuner, so I wouldn't assume they'd skip something as fundamental as the borderline or baseline spark tables.