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off road y pipe. deleting the cats

This is a discussion on off road y pipe. deleting the cats within the External Engine forums, part of the LSx Technical Help Section category; I drive a 2002 ws6. I was wondering if anybody could tell me if it was good to go with ...

  1. #1
    Junior Member
    Join Date
    Dec 2005

    Navy Blue Metallic
    2002 Trans am WS6

    Question off road y pipe. deleting the cats

    I drive a 2002 ws6. I was wondering if anybody could tell me if it was good to go with an off road y pipe that deletes the cats? I would go with Lt headers but Im not really sure how long I will keep the car, so I dont want to spend that much money. I can do the y pipe for around $200. I have the loudmouth exhaust so I know it will be loud, which is fine, but what about horsepower gains. Will I be able to feel the difference in power with going with the y pipe? How much horsepower do you really receive when you delete the cats? thanks

  2. #2
    Pathelogical Liar BlackLT1Z28's Avatar
    Join Date
    Aug 2006

    94 Camaro Z28

    I personally don't think going just with a OR Y would be worth it. Cats these days aren't that restricted, contrary to popular belief. You may get some gains, but not noticeable. But headers and an OR Y are good, but just replacing the Y would be a waste I think.

  3. #3
    member since may 2000 nhraformula's Avatar
    Join Date
    Dec 2002
    n/w chicago

    2000 nhra edition formula

    y pipe minus headers is a waste of time
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  4. #4
    Jesus died to save you! Killer_bluebird's Avatar
    Join Date
    Aug 2005
    North Olmsted, OH

    Navy Blue Metallic
    2000 Camaro Z28

    Like it was said before if you don't want to do headers for some reason it is an option. First it removes the cats, which as it was mentioned before is not a huge power robber but it will give you a few ponies and the Y pipe is not crushed like the stock one so that helps a bit also. I have a set up if you are interested I originally was going to go turbo so I didn't want to do long tube headers. I changed the plan last year and decided to go with a big cam that really benefited from the extra scavenging that a Long Tube design offers. I'm not interested in pushing you something that's not going to work for you so if you have any questions let me know.
    2000 NBM Camaro Z28
    SLP Lid & K&N, AHR Headers + 3" catted Y and Mangaflow, !EGR, !AIR, BMR CM STB, ST Front 35mm and Hellwig Adj. Rear 22mm Swaybar, Adj. Rod/Rod PHB, Koni SA's, Ground Control Springs & Adj. Ride height, and HPTuners.

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