if anyone is building a s10 i have a unmodified set of hedman fenderwell hedders. the are the 1 7/8 tubes with 3 1/2 collector, I raced with them at super chevy and thats it. just bought them right before i have the receipt. they were part number 65855, paid 689.99 new. i do not get anything off of these hedders. the adapter flanges are already ported out so that will save you time, they are ported to a fel pro 1405 gasket. plus the adapter flange bolts it came with were not stainless so im including stainless steel bolts from arp. I would like to get 600. out of them thats about 89 bucks off a new set. plus these are painted black, with stainless hardware and gaskets. I went 9.93 at 134.98 with them but im trying to get my turbo stuff done and need the money from them. thanks guys. pm me if interested.