cat delete - I found the cheapest way possible to do this

Discussion in 'RT/10 and GTS Discussions' started by Joseph Dell, May 9, 2004.

  1. Anaconda

    Anaconda Enthusiast

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    Re: cat delete - PICS!

    Okay, in that case, the O2 bung is exactly the same as the threading on a 95 Mustang...hehehe

    Looks like I have a little project to do this weekend now.....

    THANKS for the info/pics.
     
  2. Qualitywires.com

    Qualitywires.com Enthusiast

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    Re: cat delete - PICS!

    wweak sauce JD! I have a cheaperway...I have friend that own a chain of midas stores! LOL!
     
  3. Anaconda

    Anaconda Enthusiast

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    I went to their site and used their chat room thing to ask the tech if they worked on cars with no cats. The tech said NO, they only work on cars with high-flow or stock cats. I specifically listed the application and he told me that it wouldn't fool the computer and the car would run really rich.

    So how hard is it to splice up and wire the Roe ones?
     
  4. Achilles99

    Achilles99 Enthusiast

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    That tech is not right... I called them up, and they said it would work. I bought them, and they definitely work (I have no cats). Much easier (and cleaner) to install than the Roe sims (which I had on my last Viper).

    https://www.casperselectronics.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=Dodge
     
  5. Anaconda

    Anaconda Enthusiast

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    How long have you been using them? Did your gas mileage, improve, decrease, or stay the same...before and after?

    Thanks.

    EDIT: Why does it say this on the product page though. It doesn't mention anything about NO cats....

    "Restores MIL indicator function when used along with a hi-flow cat and factory sensor. Pair is used on Mopar vehicles 1996-2000 which have two cat's and two sensors. Restores MIL when vehicle is modified with hi-flow cat, headers, hi-flow exhaust, etc. Pair is used for dual-cat applications. FOR OFF-ROAD USE only."
     
  6. Achilles99

    Achilles99 Enthusiast

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    In order to answer your question, I'll have to admit that I keep track of gas mileage with a spreadsheet for all of my cars. I can honestly say that gas mileage has been about the same mpg for all three Vipers, for stock cats, hi flows, and no cats.

    Let me know if you want me to email you my spreadsheet... all I do is type in my receipt info, and it calculates a bunch of statistics for me...
     
  7. Anaconda

    Anaconda Enthusiast

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    No, that's fine. The tech told me "your gas mileage will suffer tremendously because you will be running really rich."

    That sounds to me like something you would just notice, whether you had a spreadsheet or not.
     
  8. Joseph Dell

    Joseph Dell Enthusiast

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    No gas mileage issues. No gas smell issues. Only increased performance (and a little louder than the hi-flow cats).

    JD
     
  9. KWIK96

    KWIK96 Viper Owner

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    Re: cat delete - PICS!

    Hey guys,
    can I do this on my gen 1 half bred mongrel 96RT without the sims?
    Nice job Joseph, ever thought about a career in exhausts? :2tu:
     
  10. THOR

    THOR Viper Owner

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    Re: cat delete - PICS!


    ...BUMP...anyone?
     
  11. Joseph Dell

    Joseph Dell Enthusiast

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    Re: cat delete - PICS!

    I'd have responded to you earlier but I thought you might just think i'm blowing hot air! HAH!

    96 RT (in fact any Gen I) shouldn't need O2 Sims... And since you got a 96 RT you should be good to go!

    JD
     
  12. Anaconda

    Anaconda Enthusiast

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    Re: cat delete - PICS!

    Joseph: You posted earlier that you were going to do before/after dyno results. Did you ever get those results?

    I just ordered some 3" aluminum coated steel bead rolled exhaust pipe from Summit Racing (couldn't find any in the local stores), Dynomax muffler band clamps, and I also ordered the O2 sims from Caspers. The band clamps are polished with Grade 8 bolts.

    I'll post pics/info of when I do my version of the install. We should make this thread a sticky, since it has definitely been one of the most helpful I have read.

    EDIT: Here are the parts...
    1 pair of Casper sims (go to the link earlier in this thread) $119
    1 piece of 3" x 4 ft. 16 gauge pipe from Summit $13.95 (part number SUM-640030)
    2 3" Dynomax 360 degree band exhaust clamps $8.50 each (part number WLK-33278)

    Shipping was about 15 bucks total for both orders.
     
  13. Joseph Dell

    Joseph Dell Enthusiast

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    Re: cat delete - PICS!

    i made too many changes w/ this car between hi-flow cats and non to be able to dyno...

    Sorry about that...

    JD
     
  14. Matthew Klinger

    Matthew Klinger Viper Owner

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    Re: cat delete - PICS!

    hey all, yesterday I bought the autozone 18" pipe and took the sill off. I notice, or it seems that the 18" pipe is about 2-4" to short for my 2002. I this the norm? Does the NAPA clamp fill in the gap? Is it ok with all the pressure? Thanks in advance.
     
  15. Achilles99

    Achilles99 Enthusiast

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    Re: cat delete - PICS!

    Did you remove the cats, or just the sills? What you'll do is cut off the cats, leaving as much of the flex pipe as possible which connects to the front end of the Autozone pipe. I can't remember what the front end of the stock exhaust looks like... you might have to add a reducer on the rear end of the Autozone pipe to connect it.

    What I did on my most recent cat removal for a friend was flare both ends of the Autozone pipe, and fit them over the other pipes (heaader and exhaust pipes were both 3"). There was no gap.

    Keep in mind that in JD's pics, he has a 3" header pipe on the front. You'll probably have the stock 2.5" flex pipe. So, you'll need a reducer on the front end of the Autozone pipe.

    Make sense? If not, PM me and I'll walk you through it...
     
  16. 95RT10

    95RT10 Viper Owner

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    Re: cat delete - PICS!

    Has anyone done this on a Gen I, if so how loud is it and is it worth the hp gain? cooler interior? weight savings? I have a 95 and was told that Borla 3" cat back system. Was going to pull sills to verify.
     
  17. Knight Viper

    Knight Viper Viper Owner

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    Re: cat delete - PICS!

    Does the cat delete make the car exhaust stink or burn your eyes?
     
  18. Achilles99

    Achilles99 Enthusiast

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    Re: cat delete - PICS!

    Exhaust does smell, and it does make your back bumper dirtier quicker without the cats to block the soot. As for burning your eyes, not sure... I never put my face up to the exhaust :)

    Seriously, though, it never bothered me even at stoplights.
     
  19. Joseph Dell

    Joseph Dell Enthusiast

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    Re: cat delete - PICS!

    With a SC sectup, it never stank at all. didn't even notice a smell. on some side-pipe cars, i noticed.

    JD
     
  20. Achilles99

    Achilles99 Enthusiast

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    Re: cat delete - PICS!

    I had a supercharger on as well... I could definitely smell it. It smelled good, though :)
     
  21. CaseyMetallic2000RT/10

    CaseyMetallic2000RT/10 Enthusiast

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    where`s the photos?
     

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