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Guys with Cut-outs ...

This is a discussion on Guys with Cut-outs ... within the Drag Racing forums, part of the Racing Forums category; what are your E.T.'s/mph gains with the cut-out open vs. closed at the track ? I may be ordering a ...

  1. #1
    Junior Member LS1Mac's Avatar
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    DK. Blue Metallic
    2002 SS Camaro

    Guys with Cut-outs ...

    what are your E.T.'s/mph gains with the cut-out open vs. closed at the track ?

    I may be ordering a DMH one soon myself.
    2002 DBM SS Camaro
    11.37/120.10 1.54 60ft
    Yank/243's/ F13 Cam/3.73 Motives/ full weight/Stock LS6 Intake/ TunedbyFrost

  2. #2
    Moderator Firebirdjones's Avatar
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    Mine varies with a few different cars. It really depends on how efficient the exhaust system is, and how effectively placed the cutout or cutouts are. One cutout verses two cutouts etc....
    Also how aggressively the car is tuned. On the edge with AFR? Running a little rich on a hot day may see a substantial improvement in ET by opening the cutouts.
    Lots and lots of variables.

  3. #3
    🤔 11s. blackbirdbrain89's Avatar
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    black trans am
    2000

    i rean 13.0 afr 3 inch cut outs on my y pipe long tubes cam and bolt ones
    magnaflow 3 inch 12.45 with them open i get more in thq 12.3s and pick up 1 mph

  4. #4
    Nitrous Tuner LS2Tuner's Avatar
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    If you have a good exhaust now.... I would spend the money else where! For 1 it sounds like shit & hurts your ear for No reason. Unless U have a shitty exhaust now the & the tune is off the gains are Very small. If the car is tuned properly with the exhaust when bypassing it the A/F will now be off. ALL that noise can Easily trick people!
    That's my 2 cents take it or leave it
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

  5. #5
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    Shit brown
    1985 Chevy S10

    Cut outs are nice but if you arent even in the 12's don't waste your time or money or my Hearing! thats one thing that really makes me mad lol. We have a few 14's cars running open heads. Nothing more annyoing then a slow, very loud car lol.

  6. #6
    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by SmallBCS10 View Post
    Cut outs are nice but if you arent even in the 12's don't waste your time or money or my Hearing! thats one thing that really makes me mad lol. We have a few 14's cars running open heads. Nothing more annyoing then a slow, very loud car lol.
    Hell we run mufflers on Everything. Including the dragster that goes 7's.

  7. #7
    Army Dude robcas47's Avatar
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    Arctic White
    01 TA / 06 Duc 749D

    You should see if you can find someone local that has an LS1 with a cutout so you can judge for yourself if you like the sound or not, the gains are minimal but about right for the price. If you like a loud exhaust system then you'll enjoy the cutout, some people think they sound like a dump truck or just plain sound like shit but that's their opinion. I like the way mine sounds and that's what matters most.

    ASA Cam, Built A4, 3500 Stall, LT's, ORY, Hooker CB, E Cut-out, Lid, Modified SSRA, , SFC's,UMI Tq Arm w/relo, Spohn LCA's, 3.73's, Free Mods, Dyno tuned by James @ SpeedShift Performance. Need more suspension mods!!!

  8. #8
    Junior Member Blackhawk87's Avatar
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    SOM
    2002 SS

    with my cutouts (dual) closed, 412... open 421 through moser 9.

  9. #9
    Member devildogws6's Avatar
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    2000 trans am ws6

    more times then not they can hurt you down low, but i think people do it more for sound thats mainly why i had it, i didnt notice it in my times but closed car felt more smooth on accel closed it felt more umph i guess felt like it threw you back a little harder.

  10. #10
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    Black
    02 Z06

    With the DMH setup closed on my Camaro I ran the best of a 13.0 @106, open was a 12.9 @107...I would also spend the money elsewhere...like a cam

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