Thread: Cat clogged

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  1. #1 Cat clogged 
    wingman65
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    Default 01-31-2011
    I need to replace my catylitic converter. Should I replace it with straight pipe or a universal cat? What size is the DP on 95 Grand Prix with 3100?
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  2. #2 Re: Cat clogged 
    Explicit_Spade
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    Default 01-31-2011
    As long as you don't live in California go straight pipe.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  3. #3 Re: Cat clogged 
    wingman65
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    Default 01-31-2011
    What is the Outside Diameter of the downpipe on a 95 Grand Prix SE with 3100??? I need to buy but we are in a major ice/snow storm and cant measure.
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  4. #4 Re: Cat clogged 
    gtpinsc
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    Default 01-31-2011
    2.5 inches

    02 GTP with mods 05 GP for DD
    Quote Originally Posted by SuperSport View Post
    The majority of the people here are potheads who want to buy good condition parts at junkyard prices.
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