Join Date: Feb 2013
Location: Aussie in Sweden
Being in Victoria, I wouldn't decat. Instant defect and your coppers over there are anal about anything to do with cars. Not to mention the cost probably isn't worth the benefit imo. If you're still considering getting a chip from Squadra that would give you more notable gains for about the same price if not less once you factor in shipping/fabrication costs etc. and its not defectable.
Regarding noise, I wouldn't think it would increase all that much but as I haven't decatted and deleted the front muffler, I wouldn't really be able to say.
2000 Alfa 156 Sportwagon 2.0 TS CF3
2002 Alfa GTV 2.0 TS CF3
1983 Porsche 944