I actually was able to get my two Vette friends to come over to my warehouse and help with this weekend long install. I purchased Pypes LTs and a h pipe with hf cats, o2 xtensions and percy gaskets.
After reading many posts about this mod I had a very good idea about how to do it. One thing we did not have but would have saved loads of time was a 13mm boxed racheting flex head wrench. Trying to get a tool on some of those header nuts was really challenging. Also had to take out 3 stock studs and use the supplied shorter ones so you could actually tighten them. 5mm sockets takes them out real easy. Then had to use a tiny vice grip to tighten in the shorts ones as they had some weird ass shape that no socket would hold. Make sure you tighten all header nuts before reinstalling motor mount brackets..............opps we made that mistake. The giant 18mm steering rack bolt on drivers side sucked huge............until we remembered we had a breaker bar, and that got it out. We only loosened the passenger side. Then were able to undo steering rack and move out of the way.
H pipe went in easy cept pypes doesnt know right from left and had pipes labeled wrong! LOL Previous owner had some weird xpipe in there that was really hacked together. We used a cutting wheel and got it out. But now I am having to take it to a welder and have some custom pipe fabbed up so I can connect my h pipe to the over the axle pipe. Gonna have him weld in the HF cats after the h pipe too.
I used the two 02 xtensions to attach the front green senors to the bungs on the headers. The bungs on the collector/h pipe are too far downstream to reach the respective plug in housing on the body. What did you guys do with them? I didnt want to leave the plug housing open to weather so I taped it up. Brenspeed told me they had turned off my rear sensors but they did say most people just hook up the back ones anyway. I dont know how since mine wont reach. Anybody with an auto trans run into this problem?
Tuesday I am driving my car with its open headers, no cats or mufflers hooked up to his shop.............its gonna be stupid loud!!
Here is a vid of my open headers.
YouTube - 002.AVI
patrick
After reading many posts about this mod I had a very good idea about how to do it. One thing we did not have but would have saved loads of time was a 13mm boxed racheting flex head wrench. Trying to get a tool on some of those header nuts was really challenging. Also had to take out 3 stock studs and use the supplied shorter ones so you could actually tighten them. 5mm sockets takes them out real easy. Then had to use a tiny vice grip to tighten in the shorts ones as they had some weird ass shape that no socket would hold. Make sure you tighten all header nuts before reinstalling motor mount brackets..............opps we made that mistake. The giant 18mm steering rack bolt on drivers side sucked huge............until we remembered we had a breaker bar, and that got it out. We only loosened the passenger side. Then were able to undo steering rack and move out of the way.
H pipe went in easy cept pypes doesnt know right from left and had pipes labeled wrong! LOL Previous owner had some weird xpipe in there that was really hacked together. We used a cutting wheel and got it out. But now I am having to take it to a welder and have some custom pipe fabbed up so I can connect my h pipe to the over the axle pipe. Gonna have him weld in the HF cats after the h pipe too.
I used the two 02 xtensions to attach the front green senors to the bungs on the headers. The bungs on the collector/h pipe are too far downstream to reach the respective plug in housing on the body. What did you guys do with them? I didnt want to leave the plug housing open to weather so I taped it up. Brenspeed told me they had turned off my rear sensors but they did say most people just hook up the back ones anyway. I dont know how since mine wont reach. Anybody with an auto trans run into this problem?
Tuesday I am driving my car with its open headers, no cats or mufflers hooked up to his shop.............its gonna be stupid loud!!
Here is a vid of my open headers.
YouTube - 002.AVI
patrick
Awesome! Good stuff Patrick 
