B
my 06 m7 162 will only pull 74-7600 rpm i thougt thell should pull 8200 I put 74.5g weights over the stock 74g but it seemed to woke good for a year or so but dosn't seem to want to pull now. I have d&d y pipe v-force reeds and Mbrp can. Does the sound like clutching or something else.