Kindly recommend and quote me Full Exhaust setup for my 2004 Gen2 1.6 Std Campro (Auto) - Hopefully can improve on (or eliminate) the Campro lag issue. This is my daily ride and was hoping can improve on the fuel consumption too and sounded closest possible to stock exhaust setup.

Current modd is Mythelogy LCP and Iridium plugs, thats about it.
My budget is RM800 maximum (with good options might fork out a bit if it is necessary).