to Claych. It would be good to pull some numbers off his truck before having the headers fitted and after to gauge the improvement in torque and HP. And I wouldn't say there's 'nothing' in it for the guinea pig trying them out as they will end up with some nice pipes. I would put $600-$1k into the right exhaust system (sounds pricey but when you spend the extra coin the right way you definitely get your moneys worth)