Originally Posted by Balboa
Everyone knows about speedometer error. It's so common that no one mentions it. It's like a riced-out Civic with altezzas. No one says that Civic had altezzas because it is so commonplace nowadays. Hell, it's a lot more uncommon to find a Civic without altezzas!
Oh and, by the way, at 65mph my STi has a 4mph error, at 105 it has a 6mph error.
Everyone knows about it - So I guess everyone who posted "Ive gone XXXmph" had a Garmin sitting on their dash tracking them?
It's like when I had a bike and everyone talked about going 205mph. No, you didn't. Try 170-180
At 120 I believe my Firebird was 9-12mph off, somewhere around there. It doesn't get bad until high up, obviously, it's a percentage.