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2004-2007 Cadillac CTS-V Performance Mods Discussion, Headers in Cadillac CTS-V Series Forum - 2004 - 2007; Ok, I've read through Big Jim's entire Header Install and still have some questions. I got B&B headers on the ...
  1. #1
    lollygagger8's Avatar
    lollygagger8 is offline Cadillac Owners Connoisseur
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    Headers

    Ok, I've read through Big Jim's entire Header Install and still have some questions. I got B&B headers on the way (bought the ones on classifieds) and ordered UUC MM's from Luke to change while I'm down there. Got some questions....

    1) Has anyone used wrap on their headers?
    The ones I bought are wrapped. Should I pull the tape off or leave it on? If I pull the tape off will they look like shit? Do headers make engine temps rise that much?
    2) What sparkplugs should I use if I change em out?
    3) Should I use the stock manifold gaskets already on the engine, or get new OEM gaskets?
    4) Should I get new metal gaskets in between the headers and my B&B catback..or will the ones I'm using now be ok to reuse?
    5) Studs or Original Bolts? <- seems to be a mixed bag on this one

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    SkullV's Avatar
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    Re: Header Questions

    1) I wrapped my header collectors to dampen some of the ticking noise from the valvetrain. If your headers are already wrapped and the wrap looks like it is still in good shape leave it.

    2) Stock plugs are good for anything but FI or Nitrous. You should take them out for the header install so you will be able to get a good look at if they are still ok or not.

    3) Stock manifold gaskets are good. I used the Percy's Seal-4-Good gaskets and have no leaks on mine, but Lindsay is using the stock ones on their installs with no leaks.

    4) Whether you use the OEM or the Percy's definitely get new gaskets. It is work the $20 for the peace of mind.

    5) Stock manifold bolts are completely up to the task. Put a little blue loc-tite on them and reuse them. If you want to make the job a little easier or think you will install/remove your headers often get a set of ARP Header studs.

    Hopefully that will get you started on your journey. Now post those baseline numbers!!!

  4. #3
    lollygagger8's Avatar
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    Re: Header Questions

    The ticking was that loud? I know headers amplify valvetrain noise but hope it doesn't drive me nuts!

    I have 340rwhp with what I have now on EPP's mustang. So I better get 14+ outta these things to keep up with ya!

    I guess I'll have to check the plugs when I pull em.

  5. #4
    SkullV's Avatar
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    Re: Header Questions

    What were the numbers before he tuned it?

  6. #5
    lollygagger8's Avatar
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    Re: Header Questions

    Shit man I'll have to look...I have the printouts at home and I'm at work

  7. #6
    rand49er's Avatar
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    Re: Header Questions

    Quote Originally Posted by lollygagger8 View Post
    The ticking was that loud? ...
    I haven't noticed it, here.

    I agree with Ted. If the wrap is in good shape, go with it. That'll help keep the temps down with all those wires and stuff.
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

  8. #7
    CTSV_Rob's Avatar
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    Re: Header Questions

    Quote Originally Posted by rand49er View Post
    I haven't noticed it, here.
    Says the man with the super charger. Wondering if his statement should have been something like "I can't hear it over the whine ".

    Not bad but it is a little more noticeable on mine without the header wrap.

    I used the ARP studs and they do make the install easier. The studs hold the gaskets up while you're trying to get the headers into the vehicle. Plus they look cool

    One last piece of advice, make sure to re-torque all of the hardware after a couple of heat cycles.

  9. #8
    heavymetals's Avatar
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    Re: Header Questions

    I had some solid copper gaskets made up for the B&B connection from the header to the exhaust.

    It seems that the regular gaskets leak or blow out.

    In any case, I suggest using some Permatex high temp copper sealant on all the mating surfaces.

  10. #9
    ewill3rd is offline Cadillac Technician
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    Re: Header Questions

    Blue loctite, OE gaskets, and 18 lb. ft. of torque has kept all the ones I have done quiet. OE bolts are okay but I usually use the ones that come in the Kooks kits since they are new and clean. The OE ones are rusty looking and have loctite on them that has to be cleaned off.
    Studs might make the install easier, that would be personal choice. It can be tricky to line up the gaskets, hold the headers in place and get the bolts started.

    If they are taped I'd leave it.
    I wouldn't mess with the plugs either until you get close to 100k, the platinums are good and many aftermarkets don't burn well in GM engines, the heat ranges rarely ever match up right and you get weak flame fronts.

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    Re: Header Questions

    Quote Originally Posted by CTSV_Rob View Post
    Says the man with the super charger. Wondering if his statement should have been something like "I can't hear it over the whine ". ...
    I was running headers for well over a year before the maggie went on.

    Still, my hearing is for $hit, so I shouldn't talk.

    BUT, I can hear well enough to absolutely love my setup. I've heard others with B&B and really liked them, however, mine is right for me in my situation (i.e. wife, son, being an old fart, etc).
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

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    Re: Header Questions

    Did any of you have to remove the starter in order to install the headers?

    I think I'll go with the bolts (save $ over the studs) and since they're wrapped they won't be that pretty to look at anyways lol. I can have a buddy hold em from underneath and I can line up the bolts/gaskets.

    Heavy: my gaskets from manifolds to catback are copper, but I've taken the exhaust off a couple times. Think I should contact B&B and get new ones?

    Skull: my base numbers (with CAI and catback were 324hp/317tq) never got it dyno'd all stock.

  13. #12
    terminal Velocity is offline Cadillac Owners Fanatic
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    Re: Header Questions

    A loud exhaust will usually be louder than the drivetrain noise. But when you're up against a building or tunnel or guardrail, you may hear the echo.

  14. #13
    SkullV's Avatar
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    Re: Header Questions

    Quote Originally Posted by lollygagger8 View Post
    Did any of you have to remove the starter in order to install the headers?

    Skull: my base numbers (with CAI and catback were 324hp/317tq) never got it dyno'd all stock.
    Did not remove the starter. Damn I only got 30HP with headers and a tune. I guess that is not too bad...60 bucks for 1 hp...ouch

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    lollygagger8's Avatar
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    Re: Header Questions

    Ya I guess we'll see if Brent hooks up the good tune or not! I'll be doing the UUC MM's at the same time, so it'll feel like a new car! Woooo!
    Headers got here today, but MM's don't arrive til Monday <- f'n boooo.....so it looks like next weekend it's on.

  16. #15
    rand49er's Avatar
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    Re: Header Questions

    Quote Originally Posted by SkullV View Post
    ... Damn I only got 30HP with headers and a tune ...
    Yup, that's been the number for the 3-1/2 years I've been on this forum. Actually, 25-30 has been the range, so you "done good."

    $60/rwhp is pricey, no doubt, but when you get that maggie that you've been subconsciously yearning for, the exhale part will have been taken care of already.
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

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