I had a S/S cat-back exhaust fitted by the the Powerflow agents at Queensferry nr Chester. From speaking to them they can customise the exhaust to YOUR requirements, one box or two, and make it as loud or quiet as you want.
Even with boxes without any baffles they can vary the noise by changing the direction of the gas obsorbtion holes in the boxes, I understand that gas flow through the exhaust is either clockwise or anticlockwise and if the holes in the oxes are in the same rotational direction it escapes faster and the exhaust tends to be louder- conversely it will be quieter if the holes are in the opposite rotaional direction.
Does this make sense to you? |