I'm looking at putting a set of dougs DEC250AK elecronic header cut outs on my ride.has anyone used these? they run about $500 and I would like some input befor I spend that much.they say they will not leak,made out of stainless I think they should last.hoping some of you guys that have them can tell me the poss.-neg. about yours.any info. or possible alternatives would be helpfull.thanks