Downpipes = no increase in horsepower = no increase in turbo outlet flow = no change over stock.
If you want to make a few ponies get a quality catback with high flow resonator.
If you want to make a few ponies get a quality catback with high flow resonator.
quick question, if I already have downpipes will it hurt the truck to run stage 1 maps? Basically will I be running lean due to the increased air flow?