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04-09-2013, 01:07 PM
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#1 |
  
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Cats
So I have read quite a few posts about high flow cats melting and coming apart after about 25K miles or so. I had my car in the shop for some other work, so I had them inspect the cats. Sure enough they were coming apart and I was about to have a complete blockage at any time. The shop did not have any x-pipes for my setup so I had them just gut the cats until I can have it fixed. So, why put on high flow cats if they are just going to fall apart?
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04-09-2013, 01:22 PM
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#2 | |
 
Drives: 2012 Camaro SS 45th Anniversary Join Date: Dec 2012
Location: Las Vegas
Posts: 387
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Are you running LT's and high flow cats or just shortys/stock with the Solo or JBA setup? |
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04-09-2013, 01:26 PM
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#3 | |
        Drives: pleather and Chiclets Join Date: Mar 2012
Location: a line somwhere
Posts: 4,206
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04-09-2013, 01:31 PM
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#4 | |
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04-09-2013, 01:34 PM
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#5 | |
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Oh well, I should get better performance now. 
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04-09-2013, 01:55 PM
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#6 |
 Drives: 2010 RS/SS Join Date: Dec 2010
Location: Mooresville, NC
Posts: 959
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They don't last forever but I would be surprised to see them come apart after only 20k. What brand?
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04-09-2013, 01:57 PM
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#7 | |
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04-09-2013, 03:13 PM
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#8 | |
Drives: '11 2SS/RS A6 Join Date: Apr 2011
Location: New Orleans
Posts: 504
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I am referring to the better known brands (Solo, JBA, Dynatech, SW, Kooks, etc.).
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Performance Mods:
Kooks 1-7/8 LTs; Calico coated w/HFCs, Solo Mach XL catback w/J-pipes, VMax TB, C.A.I. Intake, JRE Tune, RX Catch-Can |
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04-09-2013, 04:44 PM
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#9 | |
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Stroked and blown
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All cats come apart under boost. Quickly. If you don't have boost I would think they should of lasted longer than 25k. Anyway I don't see any good reason to run high flow cats. Leave the gutted ones on, they will never fail you now.
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LME 416 LS3 shortblock/Callies Compstar 4340 4"crank/Callies 6.125 H beams rods/Wiesco 4.07 forged pistons/Cam Motion custom LS1/LME ported heads /maggie TVS2300/I West 8rib 10%OD /3.2 pulley/OD cog drive/JRE tensioner/ID850 /ADM dual fuel/Kooks LT 1 7/8/magna flow2.5 /cat delete/Roto Fab CAI /MGW short throw /SPEC super twin clutch/G Force built trans,carbon syncro rear shaft upgrade /DSS 9"single CF DS /Strange 3.70/31 spline trutrac/MT DR's/earls oil cooler /tuned KHC
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04-09-2013, 07:52 PM
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#10 | |
 Drives: 2010 & 2012 Camaro SS Join Date: Nov 2012
Location: Phoenix
Posts: 26
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Not true!!! I have 61k on a set of high flow cats from Dynatech, boosted @ 11lbs, cammed, meth, etc, you get the jist, no issues with my cats. Its all in the tune, if its not perfect they will come apart. And to those that are wondering, this car has over 40 track days, most have been road course, about 6 drag and 3 or 4 auto-x, cats are still good. Aftermarket high flow cats wont last forever but if your car is properly tuned they will live for a long time. We have been installing and selling Dynatech's and Kooks with no issues for years, then again we have tuned most of the cars, either if we installed or the customer installed. |
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04-09-2013, 08:24 PM
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#11 |
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what about high flow cats with the stock headers and tune?
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04-10-2013, 07:43 AM
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04-10-2013, 08:49 AM
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#13 | |
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Drives: 2010 IOM 2ss/RS Join Date: Sep 2009
Location: SoCal, I.E.
Posts: 1,545
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04-10-2013, 09:14 AM
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#14 | |
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Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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