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Thread: Gauging Interest: Bolt On High Flow Convertors

  1. #31
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    I should...there was a mix-up with the exhaust pipe portion but that should be sorted out soon. Worst case I can ship you the one I do have made up here.

    Price will probably be $150 shipped...just need to confirm a couple things.

  2. #32
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    Interesting, I've been doing a fair amount of looking around for this myself, from what I can tell for the cat to work enough to pass emissions it needs to be restrictive enough to heat up, there are high flow cats that are 100 cell per inch, the problem with 100 cell is, generally, over all, it will not pass emissions testing over here, so you HAVE to go a 200 cell, and then there is a limit on how big you can go for your engine capacity, they seem to be rated 0-1.5L, 1.5L to 3L, then 3L to 6L and 6+ so their ability to work seems dependent on having the right amount of air flow per cylinder..

    I'm actually contemplating installing air pressure sensors in the exhaust so I can see how restrictive a combo is vs the air the MAF knows is going into the engine
    Building a House, Car Mods on hold!
    1996 GTO, Owner since 2003.

  3. #33
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    I definitely need one, can't stand no cats for DD'ing. When should they be up for sale?

  4. #34
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    Should be within a few days. The cats, flanges, and pipes are here...just need to do some welding.

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    Oh cool! Didn't see you were making these now. Terry hooked me up with one of these last year as a favor since I had a cat from my old exhaust I wanted to move over to the new. Works great!

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    On the site now. These are just going into production so I only have a few. They'll ship right away but after they're gone you won't see a delay of more than a week unless I sell much more than I expect. And of course I'll update this thread if it gets to that point.

    Maximal Performance High-Flow Cat - Maximal Performance

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    Quote Originally Posted by Maximal View Post
    On the site now. These are just going into production so I only have a few. They'll ship right away but after they're gone you won't see a delay of more than a week unless I sell much more than I expect. And of course I'll update this thread if it gets to that point.

    Maximal Performance High-Flow Cat - Maximal Performance

    AWESOME!!!!! ill order one tonight as soon as i get home from work.
    the basic go fast bits...
    forged short block, Billet DR1000's, 680cc injectors, meth inj, FMIC, MAFT, Apexi Neo, hotwired 255lph fuel pump.

    Tuned by Ray Pampena

    Just a fun Daily Driver.

  8. #38
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    Can you put this cat on a flowbench to show us what it's Flow Vs pressure graph looks like?

  9. #39
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    Quote Originally Posted by MR2 View Post
    Can you put this cat on a flowbench to show us what it's Flow Vs pressure graph looks like?
    I can look into it but to be honest it's probably not worth it. It's an off the shelf converter so I'll see if I can dig some numbers up.

  10. #40
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    Cool, I know it's a long shot, but it'd be nice to have quotable numbers for things, I'm going to get half my stuff flow benched as well.

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