I'm just curious if anyone has ever gotten false knock after a header install. I just put in Mac's w/ offroad pipe, and I actually have money now to spend, so if there's a possibility of having knock retard, I'd like to solve it know w/ a LT4 KM before I start saving up for something else . Also, would having the cutout open set off any false knock (I'm assuming it does cause it almost rattles the car appart, but could someone verify this). I'm asking all this cause I have no access to a scanner (and I already did a search), so any info would be great.

Thanks
Ryan

 

Yes to both.. even a RR install can do it..