1990 honda ex wanting a catback system and looking at this http://www.completeexhaust.com/produ...roducts_id=835 anyone used this system or know any pro's/cons about it

also my honda temp gauge likes to creep up randomly. i can't ever reproduce it. i've got a new modine raidator and the thermostat was replaced right before i got it 15,000 ago. i know my old '73 ford used to get an electric draw that would affect the gauge and make it do weird things so i cured that by putting a mechanical gauge on it. not too fond of doing that for my honda b/c of the lack of space. got any ideas or tests? i totally flushed the remainding part of the cooling system other than the new radiator so i know i'm getting good flow and i also checked to make sure i didn't have a pinched lower feed hose. thanks