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jba headers question

Discussion in 'Technical Chat' started by shannon41539, Feb 18, 2011.

  1. Feb 18, 2011 at 7:14 PM
    #1
    shannon41539

    shannon41539 [OP] Member

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    i put on moto metal 950 chrome wheels,afe cold air intake,flowmaster muffler with dual exhaust,JBA headers,trifold extang bed tarp,stainless steel stepside bars,3" lift in front,3" lift in the rear,chrome door handle covers,chrome grille insert cover, tinted windows with blacked out visor, and taillight covers
    I had JBA headers installed on my 2008 tacoma 4x4 double cab 4.0L V6 and they cut off the first set of catylac converters and left the second set on. I was told this light should not come on when I ask this question before and my check engine soon light comes on. You can reset it and sometimes it will stay off for two or three days and sometimes it will come back on in a matter of minutes. Anyone have any suggestions on fixing this problem.
     
  2. Feb 19, 2011 at 3:29 PM
    #2
    novanut21

    novanut21 Well-Known Member

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    They shouldnt of cut any of the cats off. The JBA headers are to be welded to the cats that were attached to your exhaust manifolds with a flange. Your suppose to cut the flange off of the cats and insert the collector of the headers into the cat and then weld them together.
     
  3. Feb 15, 2012 at 8:19 AM
    #3
    prerunner24

    prerunner24 AR-15 Shooter

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    Silver, 6" Pro Comp lift, re geared rear end, 20x9 Fuel Offroad Boost wheels & 305/55/20 Cooper Zeon LTZ tires, black halo projector headlights, black billet grille, Debadge tailgate and black door badges, Nightshades blacked out taillights & 3rd brake light, Pioneer double din monitor, K&N cold air intake, Cherry Bomb Extreme muffler with no cats & chrome 5" diesel tips dumped behind rear axel, Unichip programmer. Long Travel plans for the future, going back to 35" tires this summer, probably mud grapplers. Putting out 218 rwhp, and 245 ft/lb of torque.
    Im running a single in dual out cherry bomb extreme muffler and all of my cats are hollowed out. I want to add JBA headers to my setup but want to know how much horsepower increase they're going to give. I plan to have my truck dyno ran before i get headers though.
     
  4. Feb 15, 2012 at 9:09 PM
    #4
    Texoma

    Texoma Well-Known Member

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    Poweraid TB spacer, a bunch a cool stickers, a bada ass MetalMiller Tx Longhorns grill emblem painted Hemi Orange, JBA 2035s headers and dey are perty, Diff breather mod, Red LED interior lights, Fancy head unit that plays ipod n movies, Also DIY install factory stuff like, factory cruise control, factory intermittent wipers, OME nitro struts with 886x springs and toy tec top plate, LR UCA's for better alignmnet and dey beefier too, Old Man Emu Dakar leaf springs in da rear with the gear, U bolt flipper, 5 factory 16" steels wit Pep Boys special Dakota Definity MT's in 285/75/16, some bad ass weather tech floor liners so I don't muck up my interior, an ATO shackle flipper for mo travel in da rear wit the gear, also super shiny Fox 2.0 shocks back there too, all sorts of steal armor for bouncing off of the rocks like demello sliders, AP front skid, trans skid, n transfer skid, demello gas tank skid, and a tough as nails ARB bumper with warn 8k winch, I'm sure there's more but it's alre
    As you can see the header welded to the cat
    [​IMG]
    It's also in the JBA instructions, which you can download from the JBA website. I would have them fix what they did. Did they give you your old cats back? If not they totally screwed you over.

    Not sure on the HP, but your set up seems like it's already loud. You will have some gains in HP.
    [​IMG]

    The outside pipe on the stock manifold is 2 1/4" and the inner is 1 7/8", so you'll have less flow restriction if you get a good fabricator to do the work. The pipe going into the cat is 1 7/8" and the JBA headers are 2 1/4". Big difference in fitment.
     
  5. Feb 16, 2012 at 6:27 AM
    #5
    Lurkin

    Lurkin Well-Known Member

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    ...other fix would be to get an o2 simulator...
     
  6. Feb 16, 2012 at 8:19 AM
    #6
    prerunner24

    prerunner24 AR-15 Shooter

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    Yea its pretty much as loud as its gonna get with a muffler, but the cherry bomb extreme shouldn't even be considered a muffler because theres no packing or anything, just a metal box lol. But i love the sound because its loud but a deep tone at the same time.
     
  7. Feb 16, 2012 at 8:59 AM
    #7
    wrmathis

    wrmathis Dark Lord of the Sith

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    parts and stuff

    he would have lost the first set of cats if he got the JBA Long Tube Headers which im guessing he got.

    and if that is the case, he needs the o2 sim from URD to get the check engine light to go away

    JBA Long Tube Headers

    O2 Sims
     
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