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question on cutouts

This is a discussion on question on cutouts within the External Engine forums, part of the LSx Technical Help Section category; how exactly do cutouts work? What is required to have them and what will they do for you?...

  1. #1
    Italiano
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    Question question on cutouts

    how exactly do cutouts work? What is required to have them and what will they do for you?

  2. #2
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    1998 Pontiac Trans Am

    A single cut-out is placed in the I-pipe of the exhaust. You can either get the electric cut-out and it will open with a flip of a switch or you can just get a standard cut-out. With a standard cut-out you'll have to crawl under your car to uncap it. A cut-out just allows for a free flowing exhaust...its almost like running open headers. Instead of the exhaust traveling the distance of the entire exhaust it will exit at the cut-out...

    You can also get a dual cut-out which is placed at the end of each header. Same premise as above and maybe good for an extra HP or two. I personally don't see a need for dual cut-outs unless you have a lot of power...

  3. #3
    Italiano
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    ok, that helps a lot more. But I want to get LT's, Y pipe and catback... I want to be able to be loud when I want to and be able to quiet it up at times too. Is that possible with those additions?

  4. #4
    Tech Junkie hammertime's Avatar
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    Quote Originally Posted by Italiano
    ok, that helps a lot more. But I want to get LT's, Y pipe and catback... I want to be able to be loud when I want to and be able to quiet it up at times too. Is that possible with those additions?
    Most certainly possible with those mods. You can put a cutout just about anywhere you might have a straight pipe. Since you want Long Tube headers, I'd say put them on first, then put a cutout behind the y-pipe and leave the stock cat back on. The headers will make your car louder, especially if you go without catalytic converters. That way, you can have a quiet cruise, then open the cutout to race or whatever without the loud muffler tickets and drone in the cockpit.

    But if you must change the cat-back, a cutout can be fabbed in to that too.
    Hammer - hammertime.us
    2001 Light Pewter Metallic Camaro SS, 6 speed
    K&N, SLP Lid, SLP y-pipe, GMMG cat-back, Lou's Short Stick - more to come!

  5. #5
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    Quote Originally Posted by Italiano
    ok, that helps a lot more. But I want to get LT's, Y pipe and catback... I want to be able to be loud when I want to and be able to quiet it up at times too. Is that possible with those additions?
    Yes...but just keep in mind what hammertime said. A full exhaust like you mentioned will be a loud car. Not so loud you'll go deaf...but noticeable. To quiet the car down and keep the rasp to a minimum I would get some cats. A lot of it depends on the cat-back you'll be getting too. Like hammertime also said, the stock cat-back will make the system pretty quite. What system do you plan on getting?

  6. #6
    Italiano
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    im set on Jet Hot LT's and Y, and gmmg cat back... I was thinkin of leavin the cats in but not sure yet. what do you think?

  7. #7
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    That setup is going to sound sick with the GMMG.

    Do you have to worry about emissions? If not, I think I would go catless. On the same hand cats will quiet the car down a little bit and eliminate some of the rasp. Its really up to you though. I went with the ORY because I don't deal with emissions and an ORY is a lot cheaper.

  8. #8
    Italiano
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    Would you recomend a set of high flow cats?

  9. #9
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    If your getting a catted y-pipe, absolutely.

  10. #10
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    Get FLP longtubes with the y pipe. The y pipe comes with both straight pipe sections and hi-flow cats that can be interchanged with each other quite easily. I put the straight pipe sections in now and then but a cutout with no cats and longtubes is friggin loud and kinda raspy. The hi flow cats with the cutout open makes for a better quality sound and it will still set off a car alarms now and again.

  11. #11
    Italiano
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    ok, i know most of the lingo but not all, whats flp?

  12. #12
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    FLP is just the brand name of the headers. Do a google search and you will find info on them.

  13. #13
    Italiano
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    whats their website? I have never heard of them

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