I was just wondering does any of you guys feel your engine bang or and engine sound when you done shift really hard? I got the MMW header almost a year ago and it was made with and error and i driving it for some time now and the dent is deep and there is scratches from the axle. Do you guys think that the dent could come from the axle. Because the s-pipe was so close to the axle and adding on the down shift could that cause the dent or no?