40 quid ebay backbox

[Ed Doe]

An exhaust box wont throw emissions reading out. Only removing the catalytic converter right at the engine-end of the exhaust will do that...

Personally, I'd look for something subtle like a Magnex 3" backbox which will give you a bit more noise but not look like a tragic japcan. Japcans only look good on high power supras or skylines (*whispers* or scoobys), they look simply awful on corsas and peugeots etc!