94 Pathy Posted February 8, 2012 Share Posted February 8, 2012 I"m taking the 15th of March thru the 25th off from work. Kids will be with the Ex. Gunna try and tackle the headers & exhaust for starters. I have a whole laundry list of things I want to try & get done to the Pathy while I have no kid distractions. I REALLY hope I can get this done in a week. Any voluteers will be welcomed. Did I mention my wife is a chef? We'd grill & feed ya awesome food. I haven't mentioned that part to her yet. Will take pics & keep everyone posted. Thanks all! Link to comment Share on other sites More sharing options...
Kyle94 Posted February 8, 2012 Share Posted February 8, 2012 Good luck! Must have video of how it sounds when you are done!!! Link to comment Share on other sites More sharing options...
Tungsten Posted February 8, 2012 Share Posted February 8, 2012 Now hold on there... Do you have the details of the system that you are building? Having built and re-built one myself I could help you out here. Link to comment Share on other sites More sharing options...
tmoore4512 Posted February 8, 2012 Share Posted February 8, 2012 X2 on details... And if I were closer I would gladly come help! Link to comment Share on other sites More sharing options...
94 Pathy Posted February 8, 2012 Author Share Posted February 8, 2012 my first time doing exhaust.....Just going to take off exisiting exhaust & manifolds. Put Pacesetter headers on & go from there. Can I just order original parts from Rock Auto & piece together? Just trying to save on paying a shop to do it. Tight budget right now. If I can't just order parts, what do you recommend? Thanks for all your help! Link to comment Share on other sites More sharing options...
94 Pathy Posted February 8, 2012 Author Share Posted February 8, 2012 I'm debating on using the can muffler I have(save money) or buy a muffler for a little more thunder? I've purchased a "Thrust" muffler from Advanced Auto Parts in the past for a Ford Ranger I had. Sounded pretty good. Cheap also. I guess my biggest thing would be getting the hangers & things like that to match up with factory spots. I noticed the Oxygen sensor probe is larger then the hole in the headers, so I'll need to carefully drill the hole a little bigger for the probe to slide in so I can thread the sensor in.... Link to comment Share on other sites More sharing options...
Precise1 Posted February 8, 2012 Share Posted February 8, 2012 I haven't dealt with the PaceMaker headers, I installed Thorley headers and took it to a local exhaust shop for custom piping. They did a good job at a good price. What I can say is to check the through bore of the headers, some have had poor welds which choked off the inside diameter. B I noticed the Oxygen sensor probe is larger then the hole in the headers Wait!! The hole in the headers should be for the EGR tube, right? Link to comment Share on other sites More sharing options...
Slick Posted February 8, 2012 Share Posted February 8, 2012 (edited) Is your truck lifted? auto or manual? as B said, there have been some issues with the pacesetter headers. I have installed 2 sets of Thorley's, but there are write ups of pacesetter (and thorley) installs on the site that are very useful with good, need-to-know information... and of course, you have US! Edited February 8, 2012 by Slick Link to comment Share on other sites More sharing options...
tmoore4512 Posted February 8, 2012 Share Posted February 8, 2012 When you remove everything, set it to the side so you can use parts off of it....that is what I did... Of course I do not have headers, just stock manifolds... Here is a goofy writeup of what I did http://www.torymoore.com/pathfinder/exhaust.html Link to comment Share on other sites More sharing options...
Tungsten Posted February 9, 2012 Share Posted February 9, 2012 Yeah that is pretty good. If you are using manifolds, pacesetters, or thorley long tubes go with 2.25". If you are using the thorley short tubes then the system should be 2.50". Link to comment Share on other sites More sharing options...
94 Pathy Posted February 9, 2012 Author Share Posted February 9, 2012 I'll do some looking for the write ups tomorrow after work. I'm using PaceSetter Headers. The Pathy has a 3" CALMINI suspension lift. Will be doing a 3" body lift also, once I have some help with it. Once I get the body lift done, then I'll need to take it in & have a shop tuck the exhaust up more. I really appreciate all the info everyone is giving. I'll keep ya posted. Link to comment Share on other sites More sharing options...
Nefarious Posted February 9, 2012 Share Posted February 9, 2012 Keep in mind the 02 sensor goes into the exhaust pipe after the Y junction and the pipe goes to single. You will have to weld an o2 bung to the pipe. The big hole in the header is for your egr. I just blocked off my egr when I went vg33. Made things a lot easier. Link to comment Share on other sites More sharing options...
Nefarious Posted February 9, 2012 Share Posted February 9, 2012 By the way I used the obx headers and besides the lack of y pipe they fit perfectly. Would recommend them especially for 100 shipped is all I paid on eBay. Link to comment Share on other sites More sharing options...
94 Pathy Posted February 10, 2012 Author Share Posted February 10, 2012 Thanks for the heads up....I was thinking the O2 sensor went into the header. Glad I haven't drilled it for a begger hole. Time to do some major planning to get things straight. Need to get this done ASAP & hopefully easy. I know taking things apart & especially the manifold bolts will be a pain. Thanks again. Link to comment Share on other sites More sharing options...
Tungsten Posted February 10, 2012 Share Posted February 10, 2012 (edited) The O2 bung goes about right there. Keep in mind different years use different bungs. Be careful about the interference with the bolt! Edited February 10, 2012 by Tungsten Link to comment Share on other sites More sharing options...
Nefarious Posted February 13, 2012 Share Posted February 13, 2012 I would personally do the body lift first if you plan on doing it anyway. One reason being that it will make your exhaust job that much easier, and two you wont have to have the exhaust changed again later. It's a tight spot under there with no body lift... an extra 3" of room really makes a huge difference for both working with headers and exhaust alike. Link to comment Share on other sites More sharing options...
tmoore4512 Posted February 18, 2012 Share Posted February 18, 2012 X2 on what Nefarious stated... And those OBX headers are cheap! WOW! Link to comment Share on other sites More sharing options...
tmoore4512 Posted February 18, 2012 Share Posted February 18, 2012 Just cannot find em for that cheap...oh well. Link to comment Share on other sites More sharing options...
Tungsten Posted February 18, 2012 Share Posted February 18, 2012 I know every exhaust system can have its horror stories but OBX seems to be the worst. You get what you pay for! I would stick with PaceSetter for more affordable headers. Link to comment Share on other sites More sharing options...
pathybuilder Posted February 18, 2012 Share Posted February 18, 2012 I would personally do the body lift first if you plan on doing it anyway. One reason being that it will make your exhaust job that much easier, and two you wont have to have the exhaust changed again later. It's a tight spot under there with no body lift... an extra 3" of room really makes a huge difference for both working with headers and exhaust alike. X3. Also, I would consider installing heatwrap down on the headers down to the Y pipe before you install. Even with a 2" BL, installing heatwrap after the fact is a PITA. It's really tight on the passenger side, clearance in minimal to all the fuel and brake lines. My pacesetter headers had two ports on the drivers side, one is for the EGR tube and the other (so I'm told) was for some environmental pump that was used on pathfinders in california (somebody please chime in if they know what it's called). It seems to me I needed a metric plug 24mm? to seal this port. The Y pipe on the pacesetters I found to be a problem. Wish it came with flanges instead of clamps. It's not bad the first time it's assembled, but if you have to remove it later to say change the tranny, it's tough to get sealed again without a welder. Mine eventually got beat up enough that I took it to and exhaust shop to build a new Y pipe. Good luck sounds like a good project. Oh yeah, put lots of penetrating oil on your manifold studs, I broke 2 off removing mine. Link to comment Share on other sites More sharing options...
tmoore4512 Posted February 18, 2012 Share Posted February 18, 2012 From the reviews I read on some of their v6 and 2 piece 4 cylinder headers, they are bottom barrel. Oh well... Time to search for some DT or PS... Link to comment Share on other sites More sharing options...
Tungsten Posted February 18, 2012 Share Posted February 18, 2012 Make sure you visually inspect ALL headers before installation. There were even horror stories with the cream of the crop Thorley headers having poor welds and cracking. I use that brand and so far they have been good to me. No cracks and no splits. Link to comment Share on other sites More sharing options...
94 Pathy Posted February 19, 2012 Author Share Posted February 19, 2012 I'm thinking the only thing I'm scared of is the bolts busting. I'm goingto take the Pathy to a care wash & powerwash the whole vehicle & get in & around the headers to get them cleaned out & also under the body to the body bolts tomorrow. Gunna start spraying the bolts to everything with PB Blaster for the next couple weeks. I hope all goes well & can get those two things done.....also need to put both new high quality professional grade upper ball joints in & try & replace the CV boots if I can get the extra help to get everything done. Too much shiznit to do & not enough time. Time to read up on the BL that came with the kit & read up on what others have ran across also. Thanks again everyone for all the great info. Link to comment Share on other sites More sharing options...
SkiBumBrian Posted October 15, 2013 Share Posted October 15, 2013 Got my Magnaflow Cat and muffler today in the mail. I also have my new exhaust studs, gaskets and hardware for when I get some Thorley headers. My question is, I want to rebuild everything from the cat back now and install the headers at a later date when I have more coin. Is there a preferred place to do the "splice" that would make installation of the headers later easier and/or cheaper? Maybe some type of flange in an appropriate place for mating the 2 halves? Lemme know if this is an acceptable idea or if I should just stare at them in the corner until I can do the whole system. Thanks! Link to comment Share on other sites More sharing options...
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