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Best High Flow Cats???

This is a discussion on Best High Flow Cats??? within the External Engine forums, part of the LSx Technical Help Section category; Got these myself, they look pretty good. http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWNX:IT...

  1. #21
    Senior Member JoshuaGrooms83's Avatar
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    Got these myself, they look pretty good.
    http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWNX:IT

  2. #22
    rice,its what's fo dinner LeadFarmer's Avatar
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    Quote Originally Posted by JoshuaGrooms83 View Post
    Got these myself, they look pretty good.
    http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWNX:IT
    I got these on my car as well, don't pay anything over $40 for cats, they all do the same damn thing. as long as they're bullet style and short it'll do, they'll pick you up couple hp over the stock cats, more if the stock ones are clogged as was in my case

  3. #23
    Exalted Cyclops 67CamaroRSSS's Avatar
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    Sadly now demodded :(

    Do you need to have cats for inspection? If not then delete them altogether.

    The highest flowing cat is a deleted cat.

  4. #24
    rice,its what's fo dinner LeadFarmer's Avatar
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    Quote Originally Posted by 67CamaroRSSS View Post
    Do you need to have cats for inspection? If not then delete them altogether.

    The highest flowing cat is a deleted cat.
    that is if you don't mind the smell of burnt shit first thing in the mornin'

  5. #25
    Exalted Cyclops 67CamaroRSSS's Avatar
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    Quote Originally Posted by LeadFarmer View Post
    that is if you don't mind the smell of burnt shit first thing in the mornin'
    What are you referring to?

    The only thing I smell on the 02 is unburnt fumes when idling in line (say at Sonic or the like) and that's only because I have the duals dumped at the axle. When I had a Y-pipe then single going to the rear I didn't smell even that unless I stood at the rear of the car and then only after a while.

  6. #26
    rice,its what's fo dinner LeadFarmer's Avatar
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    Quote Originally Posted by 67CamaroRSSS View Post
    What are you referring to?

    The only thing I smell on the 02 is unburnt fumes when idling in line (say at Sonic or the like) and that's only because I have the duals dumped at the axle. When I had a Y-pipe then single going to the rear I didn't smell even that unless I stood at the rear of the car and then only after a while.
    well generally speaking an OR system is going to smell worse than a catted system. I have friends running OR/punched out cats on their terminators and 240's and I can't stand the smell, gives me a headache after awhile. kinda smells like sticking your nose in the exhaust of an edger/lawnmower.

  7. #27
    Senior Member 00z28bubba's Avatar
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    mine are about as high flow as it gets. but then again they are empty lol.

  8. #28
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    Just installed a pair of MagnaFlow High-Flow Cats today.. picked them up for 201.00 each + Free Shipping from AutoAnything.com.. Bolted right up to my Shorty Headers and Flowmaster catback

  9. #29
    Join the PHK @ thephk.org Sommer86@6LE's Avatar
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    Just bought a set on eBay for $37 each. Had to ship them to AZ. (since they won't ship to Cali) then they're getting shipped here.

    Should be on next week. Stainless steel, 3", high flow and cheap. I'm excited.

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  10. #30
    rice,its what's fo dinner LeadFarmer's Avatar
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    Quote Originally Posted by Y2kz28PA View Post
    Just installed a pair of MagnaFlow High-Flow Cats today.. picked them up for 201.00 each + Free Shipping from AutoAnything.com.. Bolted right up to my Shorty Headers and Flowmaster catback
    dude i'm sorry but that's and incredible rip off. plus those are gonna rob you of a few hp compared to the cheap ones and they'll also prob. make your car quieter, plus I don't see any pros. to buying insanely expensive cats.

  11. #31
    Member c5z28's Avatar
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    On your ass flashing
    my highbeams

    I have the magnaflow 3" and I tested my cars for giggles since I have easy access to a roller. Either my tuner was sloppy, or the cats are junk because I failed the pipe w/ just bolt-ons.

  12. #32
    Senior Member 00z28bubba's Avatar
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    Quote Originally Posted by LeadFarmer View Post
    dude i'm sorry but that's and incredible rip off. plus those are gonna rob you of a few hp compared to the cheap ones and they'll also prob. make your car quieter, plus I don't see any pros. to buying insanely expensive cats.
    whats a rip off? the shorties or the high flow cats?

  13. #33
    rice,its what's fo dinner LeadFarmer's Avatar
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    if I understood correctly he said he paid $201 for each cat(X2)=highway robbery

  14. #34
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    Quote Originally Posted by LeadFarmer View Post
    if I understood correctly he said he paid $201 for each cat(X2)=highway robbery
    Not compared to $574.00 each for the OEM cats.. yes they are quieter, I have been robbed of a few HP.. but; on the good side I don't have to sell it!!!

    My wife has a brain tumor and it needed to be quieter so she can ride in it, without causing her tinittus to go nuts.. All in all I think I made out really well!!! Why go cheap when you can do it right.. its not all about HP and noise! well not with me anyways, my priorities have changed
    Last edited by Y2kz28PA; 05-08-2010 at 03:16 PM.

  15. #35
    rice,its what's fo dinner LeadFarmer's Avatar
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    Quote Originally Posted by Y2kz28PA View Post
    Not compared to $574.00 each for the OEM cats.. yes they are quieter, I have been robbed of a few HP.. but; on the good side I don't have to sell it!!!

    My wife has a brain tumor and it needed to be quieter so she can ride in it, without causing her tinittus to go nuts.. All in all I think I made out really well!!! Why go cheap when you can do it right.. its not all about HP and noise! well not with me anyways, my priorities have changed
    well in that case then yes the extra money was completely justified. But for your situation wouldn't it just be easier to throw on an extra muffler?

  16. #36
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    Yeah.. this seemed the easiest route.. it had the stock cats, they kept throwing lights.. so I had them holllowed.. then they were way to loud.. So I went with high-flow's.. it is much better now
    Just another guy who loves American Muscle,make that GM muscle!!!- besides, RICE makes you --->


    Y2K Z-28 Red- SLP Intake/K&N - Edlebrock Headers- Magneflow High Flow Cats and
    FlowMaster Exhaust. Dyno Tuned- Polished Throttle Body & MF Sensor

  17. #37
    Join the PHK @ thephk.org Sommer86@6LE's Avatar
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    I just installed my $37 ebay "raceparts" cats. I FRIGGIN' LOVE THEM!! My car went from raspy at 1900 - 2400 rpm to low, deep and smooth. I can talk in my car and I dont smell burning shit. They look great too. Stainless steel and 3".

    2 thumbs up!

  18. #38
    rice,its what's fo dinner LeadFarmer's Avatar
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    Quote Originally Posted by Sommer86@6LE View Post
    I just installed my $37 ebay "raceparts" cats. I FRIGGIN' LOVE THEM!! My car went from raspy at 1900 - 2400 rpm to low, deep and smooth. I can talk in my car and I dont smell burning shit. They look great too. Stainless steel and 3".

    2 thumbs up!
    i've got the same one's, they're legit

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