If you are talking about stock(meaning no modifications), the highest for me was 143 mph. If you add some modifications then it can go up to over 160 depending on how many horsepower it has after the mod.
barely 170Mph
The 2009 Acura TSX has a 6-speed manual.
The 2006 Acura TSX has a 6-speed manual.
The 2008 Acura TSX has a 6-speed manual.
The 2011 Acura TSX has a 6-speed manual.
The 2005 Acura TSX has a 6-speed manual.
The 2004 Acura TSX has a 6-speed manual.
The 2007 Acura TSX has a 6-speed manual.
The 2014 Acura TSX has a 5-speed shiftable automatic.
The 2012 Acura TSX has a 5-speed shiftable automatic.
The 2013 Acura TSX has a 5-speed shiftable automatic.
The 2010 Acura TSX has a 5-speed shiftable automatic.