[budgetmaster]

I made the mistake of adding 1 5/8 equal's to my car recently. I have a very simple combo of stock intake, ported e7's, h-pipe, 3.55's etc. With the stock headers, this car dynoed 238hp with a nice flat torque curve. Ran 13.5-13.7 very consistently at 101 or 102. I promise you that the lrge tube headers make my car slower. No doubt about it. I shift at 5200 and don't need the flow, I suppose. Maybe if I was running 4.10's i wouldnt feel the loss as much. I am changing back to the stock headers this wknd(gasp). Headers should be a mod after heads, intake, h-pipe, gears, then maybe you wont be disappointed.