broz, it will be better if u get a external wastegate to ease your turbo, costing around 200-350 for second hand. Btw, dun waste $ in getting the wastegate if your piping is 3inch and the downpipe is just 2.75. It will be better for u to get a set of the same size. And if u want your car to 'breath' better, go and decat your exhaust system and make it full flow but add a fake cat to pass inspection. This way, yur car exhaust system will be better. Will cost around $80-$150 @ FK.