I broke down and bought some of those $300 evilBay headers the other day.. gonna put them on today.. I hope these things are worth the $300, but if not, well, oh well..
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I broke down and bought some of those $300 evilBay headers the other day.. gonna put them on today.. I hope these things are worth the $300, but if not, well, oh well..
they're worth it, the install is pretty easy, its just the removing of the old y-pipe thats tough, if you can remove you crossmember pretty eash, you should be able to get the old y-pipe out in one piece, if not, get the sawzall out. if you do end up cutting the y-pipe, be sire to cut the collector flanges with about 6 inches of straight pipe below the flange, that way if somebody else needs some collectors for a swap using stock manifolds, you can sell em to them cheap. other than be sure the passenger side resonator is rotated to a position with the
o2 sensor flanges pointed up-ish, otherwise you'll get condensation on the front o2 sensor which will cause it to fail very shortly. and you might try unhooking the forward-most rubber hanger on the catback, it will help you get the intermediate flange to hook up. i had a tough time with this. and if your really careful and don't get all cray, you can leave the sparkplugs installed when you put the headers on. good luck. and just wait till you drive it you'll love it
Let me know how those fit, because I have an '05 silvy I want to put those into but don't know if it'll fit.
i would buy some band clamps the ones they sent me leaked but i bought the ones off of ebay and they fit pretty good just gotta watch out for your spark plug wires i bought some heat resistant wrap tape and it works good now
The install went great.. fitment is perfect, even on a z71.. i am going to buy some band clamps.... i pulled the plugs out, because i was putting some NGK TR5's in it... country_3030 helped me with the install, and fabbed up a neat lil strap to hold the rear 2 plug wires on the drivers side, and also act as a heat shield to them... i cut the old y-pipe off with the torch... the SES light is on because we didn't re-install the rear O2 sensors... i made sure the pass side cat had the O2 bungs at about the 2 o'clock position if looking from the rear.. i only have 1 hanger on my cat-back, going to the Flowbastard, which will be off in the next couple weeks, and replaced with custom made y-pipe, duals, and 2 Spintech Pro Street Mufflers...
truckin- i would say buy the dang things, they fit super easy, especially if the truck is on a lift lol
How much power did you gain? Enough to to notice or be worth it?
i could feel a gain with the headers, but i only drove with them for about 70 miles of backroads that night after we installed, and tuned it first thing sunday morning.. it hauls the mail now that it has a good tune, but i didnt drive enough before the tune to git a good feel tho..
your gonna love the spin tech mufflers, i love mine, they r wicked WOT
I LOVE WICKED!!! i just walked in my room and there was 2 boxes taped together that said Spintech on the side.. now hopefully ill git them put on next week.. with the lt's and the dumped flowbastard my truck sounds like it has glasspacks on it..
that is good to hear they work good on a Z71! i think i'm going to have to get me a set, lol...
The install went good only had to cut the factory Y pipe in two freaking places to get it out. Got a pic of him with torch lookin crazy. Anyways the headers look great and the wire strap was easy to fab and mount with the two holes that are already in the head. Got some pic that I will post later.
cool deal! i went ahead and ordered me some, they should arrive during the week.
leave me and the torch outta this..
UPDATE: took it to the muffler shop to have my dual spintech's put on.. after he did some modifying, i now have true duals with X-pipe and the truck sounds MEAN at WOT!!!!!!
bluecajun, you will be happy with the set up, but i suggest giting 2 band clamps for the 2 slip on connections.. other than that, they are awesome..
once i have everything mocked up and fastened, i'm going to weld the slip joints together.Quote:
Originally Posted by ImportThis