Does it matter if i use a ARP Pro series headbolt for a turbo on my NA 7MGE??? Has anyone ever bought anything from horsepower freaks? the other head bolts that are sold individually for $3.00, are those the stock headbolts? Need help, what do you guys recommend? the ARP Headbolts are roughly $115 with shipping. that i can afford. As soon as i get a couple of responses, i will be buying the headbolts. thanks again guys, for your inputs. your help is greatly appreciated.