i pd around $170 or 180 for the plog neww, from zzp i got the ceramic coated 1, later on i bought the 3"dp, no cat or res,(trying to leave my footprint) lol. yes for the plog and dp i could've bought headers. depressing. but i bought them about 8 months apart so, its alot more quicker than stock and so much safer for it too. remember that a new dp comes with the headers too.