98/99? Not entirely sure? It is ECU related I believe... its got a piggy back system, so retains the original ECU and unlike the NA's its not just a dashboard thing. There must be someone out there who knows how to de-restrict it!?
To get rid of this limiter, you have to remove a screw from the printed circuit board behind the speedometer.. Looking at the printed circuit board , there are two big multi-connectors ,each with 12 connections. They are labeled 'a' to 'l' and 'A' to 'L'. The 'G' connection is marked 180kp/h sw and, if you follow it up the board, it leads to a screw. Removing this screw disables the speed limiter."
That's for a 1.6 NA, everything I've found points to the ecu. :/
Also, to the pedantic chap, circa 140... Took a while but it was around there on the dash - on the return from the 'ring. . My mates cliosport ran out of revs first. . Either way, the turbo NB should be good for more than the 110ish it currently does.