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What are the best cut outs?

This is a discussion on What are the best cut outs? within the External Engine forums, part of the LSx Technical Help Section category; I am looking to buy the best brand of cut outs. Looks like marylandspeed way has the lowest prices. Also ...

  1. #1

    What are the best cut outs?

    I am looking to buy the best brand of cut outs. Looks like marylandspeed way has the lowest prices.

    Also are there any problems I should be aware of with cut outs?

    DHC vs QTP?
    Last edited by Mike0202; 02-04-2011 at 06:29 PM.

  2. #2
    Member parnelligq's Avatar
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    black99, silverY2K
    1999 z28 & Y2K z28

    I have a QTP in a borla set-up and it worked for about a year and is now either burnt out or stuck.

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    '02 WS.6 / '07 Suburban

    DMH.

  4. #4
    Quote Originally Posted by parnelligq View Post
    I have a QTP in a borla set-up and it worked for about a year and is now either burnt out or stuck.
    Ive been searching alot and it looks like DHC is better. Its just expensive it seems.

  5. #5
    Quote Originally Posted by pajeff02 View Post
    DMH.
    Where did you buy yours??

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    Quote Originally Posted by Mike0202 View Post
    Where did you buy yours??
    KY Speed (site sponsor).


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    Senior Member INMY01TA's Avatar
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    Black
    2001 Trans Am (sold)

    If you're talking electric cutouts I have a DMH. They don't burn out as fast as QTP but they cost a little more and have warranty, 5 years if I remember correctly. Race Ready cutouts have a lifetime warranty but cost even more than DMH. I got mine from Speed Inc. Damn PaJeff the underside of your car is clean ^^.


  8. #8
    Member parnelligq's Avatar
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    black99, silverY2K
    1999 z28 & Y2K z28

    I bought mine where I get most of my parts, on Ebay. New in the box.

  9. #9
    Please Choose:
    Size 2 2.5 3 3.5 4 Select Size



    Cutout 4" Cutout ( +$85.00 ) Flowtech 2 - 3.5" ( +$20.00 ) No Thanks



    These are the options. So the actually cut out itself is flowtech?

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    Quote Originally Posted by Mike0202 View Post
    Please Choose:
    Size 2 2.5 3 3.5 4 Select Size



    Cutout 4" Cutout ( +$85.00 ) Flowtech 2 - 3.5" ( +$20.00 ) No Thanks



    These are the options. So the actually cut out itself is flowtech?

    Flowtech is the pipe that it mounts in.

  11. #11
    Member parnelligq's Avatar
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    black99, silverY2K
    1999 z28 & Y2K z28

    mine is a 3"

  12. #12
    Quote Originally Posted by pajeff02 View Post
    Flowtech is the pipe that it mounts in.
    Okay I guess ill get that one since its cheaper?

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    Quote Originally Posted by Mike0202 View Post
    Okay I guess ill get that one since its cheaper?

    What mid-pipe is in your car now? Is it stainless?

  14. #14
    Member parnelligq's Avatar
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    black99, silverY2K
    1999 z28 & Y2K z28

    I believe the Borla catback is 304ss.

  15. #15
    Quote Originally Posted by pajeff02 View Post
    What mid-pipe is in your car now? Is it stainless?
    I have long tubes, 3" Y pipe, and the ws6 catback with an aftermarket muffler..

    I think its the ws6 catback, not 100 percent sure it was on when i bought the car. so its either 2.75 or 3" at most.
    Last edited by Mike0202; 02-04-2011 at 07:26 PM.

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    Quote Originally Posted by Mike0202 View Post
    I have long tubes, 3" Y pipe, and the ws6 catback with an aftermarket muffler..

    Only reason I ask is that the Flowtech is mild steel with a black electrostatic finish. That simply would not have worked with our setup so I fabbed a custom piece and had my brother TIG it to our Magnaflow mid-pipe. Pics in this thread that show the Flowtech piece that comes with the DMH: Fabricated cutout install w/ pics.

  17. #17
    Quote Originally Posted by pajeff02 View Post
    Only reason I ask is that the Flowtech is mild steel with a black electrostatic finish. That simply would not have worked with our setup so I fabbed a custom piece and had my brother TIG it to our Magnaflow mid-pipe. Pics in this thread that show the Flowtech piece that comes with the DMH: Fabricated cutout install w/ pics.
    So will the flowtech require fab?

    I was just thinking of getting the manual one. Its so much cheaper. Not sure though. I might regret it

  18. #18
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    Quote Originally Posted by Mike0202 View Post
    So will the flowtech require fab?

    I was just thinking of getting the manual one. Its so much cheaper. Not sure though. I might regret it

    You have to cut a section out of your mid-pipe and weld in the Flowtech. Could use band clamps I suppose, but I have not seen one in person installed with clamps.

  19. #19
    Member parnelligq's Avatar
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    black99, silverY2K
    1999 z28 & Y2K z28

    I would want to use a cutout on each side from each header if I had the money. I guess I would use one behind the "Y" pipe until I could I could afford the second.

  20. #20
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    Quote Originally Posted by parnelligq View Post
    I would want to use a cutout on each side from each header if I had the money. I guess I would use one behind the "Y" pipe until I could I could afford the second.

    They make a flattened oval cutout for a dual installation on the Y-pipe. They are really slick, but I just could not justify the same. Quite happy with our single cutout.

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