Finally got it done!
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2004-2007 Cadillac CTS-V Performance Mods Discussion, Finally got it done! in Cadillac CTS-V Series Forum - 2004 - 2007; So I am still in the process of getting it finished up, but just ran out of time yesterday. I ...
  1. #1
    BigDaddy-V is offline Cadillac Owners Fanatic
    Automobile(s): CTS-V 04 LS6
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    Finally got it done!

    So I am still in the process of getting it finished up, but just ran out of time yesterday. I got some custom high flow cats fabbed up by another forum member (Pook0823) and he did a great job. He built a custom down pipe from the cast manifolds and have the cats placed about the same location of where it would be with LT's. Last night at start up it sounded just like his kooks LT's and high flows. We will be feeding it into an x-pipe and then back the rest of the way into corsa mufflers. I will post some pics when everything is said and done. I will try to get a sound clip too once it is finished.

    So happy so far with it and great to know I have the right friends around me! Thanks Pook!

    BDV

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  3. #2
    lowoctane. is offline Cadillac Owners Member
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    Re: Finally got it done!

    Pics or it didnt happen!

  4. #3
    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: Finally got it done!

    I will get them up later! I can take some of them now and I guess it will show off the handy work of the downpipe.

    I know some people will wonder why I went this route vs full headers but it is a more economical way and I can tell a better flow already with it on. i know it will not have the full benefits of LT's but it will be way better than the stock option.

    BDV

  5. #4
    H-town_V's Avatar
    H-town_V is offline Cadillac Owners Fanatic
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    Has your car been tuned? You prob won't need one but it never hurts. It would be interesting to see if there's a hp gain. If a shop has tuned it already they will retune very cheap if not for free.

    Also u may need/want your rear o2's deleted.

  6. #5
    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: Finally got it done!

    I already had a tune running through a diablo unit. It hasn't thrown any codes yet and the rear O2s seem to be doing ok. As it warms up a little bit and I but some more miles on it I will be doing some datalogging to see how it is running and changed anything. I should be able to tell if it needs to be retuned or not. If it has to be then I know that it did some good and will be a nice gain for not alot of spending! I will be sure to post back with anything. I wish I had done a baseline dyno pull for numbers, but it isn't so much about gaining numbers as it is making the car run better and if more power and efficiency happens then even better!

    BDV

  7. #6
    2007-V is offline Cadillac Owners Fanatic
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    Re: Finally got it done!

    Very nice! I really want to replace my exhaust....but only 17 things at a time.

  8. #7
    Pook0823 is offline Cadillac Owners Member
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    Welds probably need to be cleaned up as it was done using an arc welder set cool temps on reverse polarity (puddle welding)

    Sent from AutoGuide.com App

  9. #8
    MarkOne is offline Cadillac Owners Member
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    Re: Finally got it done!

    Quote Originally Posted by lowoctane. View Post
    Pics or it didnt happen!
    +1

    Let's see them bad boys!

  10. #9
    Pook0823 is offline Cadillac Owners Member
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    Here is a pic on one of the manifolds. This is first run and plan on redoing them one I get my garage set up properly

    Sent from AutoGuide.com App
    Attached Images

  11. #10
    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: Finally got it done!

    this morning I got on it a little more in a more open part of my morning drive and it does feel better under some heavy pedal. I don't know if that will change that much when we put on the rest of the exhaust but I can tell that it is running stronger after this work.

    Like I said earlier when it warms up a little bit I will try to get some data on how it is running and where it is running to see if it "needs to be" retuned or it is in an ok range.

    Will try to get some more pictures up if the site would accept bigger photos! Trying to resize them but it just doesn't like me.

    BDV

  12. #11
    Pook0823 is offline Cadillac Owners Member
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    Here's pics of it mounted

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  13. #12
    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: Finally got it done!

    We are going to turn the O2s up a little higher just to make sure they don't get caught on anything. I know not everyone might have access to a welder but I would highly recommend this to any of the other owners out there wanting more but were the budget is small. It took a while to get the best plan together but I think that it has turned out amazingly well! I will also try to get some more pics as we put up the x pipe and then remount the rest of the corsa.

    Thanks again Pook!

    BDV

  14. #13
    lowoctane. is offline Cadillac Owners Member
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    Re: Finally got it done!

    Cant wait to see the data. Are the cats a universal type?

  15. #14
    BigDaddy-V is offline Cadillac Owners Fanatic
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    Re: Finally got it done!

    The cats are high flow Thunderbolt 2.5 metallic substrate cats. They look just like the high flows that came with Pook's high flow cats on the kooks setup. They are 62 a piece through performance curve. Very worth the investment to me!

    BDV

  16. #15
    Pook0823 is offline Cadillac Owners Member
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    Yes they are universal, performance curve offers 2.5" thunder bolts for 62 as bdv stated, or 3" for I believe 30 each.

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