GIAC demonstrating top speed limiter removal with their tune on a B8 S4 - 180 MPH hit
GIAC released a video to show they were successful in removing the speed limiter on the B8 S4. This test is done with no load as in on a dyno. The car gets up to 180 mph in 7th gear showing they were successful. Would the car hit this much in the real world? Eventually, perhaps, but even on the dyno the vehicle slows considerably once it gets into 6th gear. Regardless, if one is finding the limiter to be an issue GIAC has a solution.