BEWARE! Gen 3 catalytic converters are as easy to steal and Gen 2's.

Discussion in 'Gen 3 Prius Main Forum' started by Georgina Rudkus, May 2, 2021.

  1. xliderider

    xliderider Senior Member

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    I made a ramp so I can roll the floor jack up onto the riser. Almost threw out my back lifting the jack when I was test fitting it on the riser.

    I also decided to take a minimalist approach for the platform, there's only 4x4 blocks under the wheels of the jack instead of the whole platform being solid wood (heavy)!

    Just have to fasten everything down and add some wheel stops and side rails so the jack can't roll off the riser. 20210508_121407.jpeg 20210508_121548.jpeg

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  2. Mendel Leisk

    Mendel Leisk Underfoot

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    Pyramid builders in your ancestry? (Rhetorical :))
     
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  3. Georgina Rudkus

    Georgina Rudkus Senior Member

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    I have Scepter ramps that I regularly use for oil changes, Race Ramps, the Quick Jack 3500, but my favorite is the Safejacks Rennstands which provides 16-1/2 inch of clearance.

    If you raise the front pinch weld, the rear tire is at least two inches above the ground, where I can support with an Esco jack stand.



    Just raising one side allows easy access to many components including the exhaust system and easy tire rotation. best jackstands.jpg That's what I used to paint the catalytic converter, preheater and resonator.
     
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  4. xliderider

    xliderider Senior Member

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    Finally installed the cat shields today. I didn't use the ramp I built in the end.

    I was able to get 16 inches of clearance below the frame rails. It was still a tight fit working under the car, and getting enough leverage on the rivet tool and drill to bore the necessary extra holes was very difficult.

    I couldn't get enough leverage on the rivet tool on stainless steel 1/4 inch rivets, so I ended up using the included all aluminum rivets.

    It's so uncomfortable working under the car, I'm hoping that any thieves don't want to spend time drilling out the rivets to remove my stainless steel mesh reinforced cat shields.

    Sorry for the backwards pictures, I used the selfie mode on the front camera, so the pictures are mirror images. 20210508_205403.jpeg 20210508_205429.jpeg

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  5. privilege

    privilege Active Member

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    I know folks are trying to prevent theft, but a jerk with a cordless Metabo wheel ... wouldn't even take a minute to get through those pieces of sheet metal.

    for that matter, a skill saw would do it, and sound like regular old construction to anyone that noticed.

    it might be money well spent to use an after market cat that is much much cheaper, and sell your high dollar oem for profit.
     
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  6. Grit

    Grit Senior Member

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    on my way now to cut off my oem cat to sell off and replacing it with a aftermarket to come out ahead. The aftermarket cat would deter theifs and I get a new bottle of wine, win win!
     
    #26 Grit, May 9, 2021
    Last edited: May 9, 2021
  7. xliderider

    xliderider Senior Member

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    For those who have installed cat shields, warning stickers or no stickers on the windows?

    For home security systems, there's two schools of thought on yard signs and window stickers. Warn thieves away, or advertise the type of security system you have, so that they know it's weaknesses and make it easier to steal from you.

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  8. Raytheeagle

    Raytheeagle Senior Member

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    No stickers on mine;).

    I'll let the surprise be evident when they put forth effort:).

    It should elicit the "move along this won't be easy" response(y).
     
  9. xliderider

    xliderider Senior Member

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    Just saw this OfferUp listing in Honolulu, someone's selling steel bolt on cat shields from $450 and up.

    I'd say, with the wording on the shield's, I would think that you'd end up with at least a heavily keyed car, or a smashed window. Screenshot_20210509-072431_OfferUp.jpeg Screenshot_20210509-072420_OfferUp.jpeg Screenshot_20210509-072409_OfferUp.jpeg

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  10. privilege

    privilege Active Member

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    cool. are you replacing a gen 3 cat ?

    I'm not finding much info about 3rd generation aftermarket replacements. as soon as I do, I'll remove my OEM and replace it, pocketing the difference
     
  11. privilege

    privilege Active Member

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    $20 worth of steel sheet and $10 worth of plasma cutter time = $450 "kit"

    and you still gotta pay a welder ($$$$) to dab it into place
     
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  12. Mendel Leisk

    Mendel Leisk Underfoot

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    Tried something today. Will see how it holds up, invite opinions. Got very solid once I torqued all the nuts. If I’m happy with it I’ll maybe heat up the accessible nuts and wick solder into them.

    4BB3CB7A-683C-460E-92B0-EC31975B2C74.jpeg D897731D-8FA5-45EB-B5E2-E6AA46418D36.jpeg 4099B5CC-AB8D-4C32-BCBC-206BFE9BE926.jpeg 28D33672-A683-4E43-B59C-C6928F161C23.jpeg
     
  13. Tekken

    Tekken Member

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    I love your Chain method, doesn't it Rattle?
     
  14. Tekken

    Tekken Member

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    It's pain in the A$$ that Cali Smog Check require to check the CAT, if we Rivet the CAT Shield, it needs to un-Rivet the nut every 2yrs prior Smog Check
     
  15. Mendel Leisk

    Mendel Leisk Underfoot

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    Don’t know yet; haven’t driven. It was slightly loose at first, but once I torqued the 3 bolts at the surface it tightened up solid. I’ll watch for that and update.
     
  16. PriusII&C

    PriusII&C Member

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    Do you speak from personal experience? Before riveting the sheild to my Prius a few months ago, I talked to a smog check station owner, and he informed me of no need taking the shield off if the catalytic converter is the original. My smog check is a few months away, and I hope I don't need to take the shield off.
     
    #36 PriusII&C, Apr 10, 2022
    Last edited: Apr 10, 2022
  17. crooner

    crooner Member

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    I smogged my Gen 2 late last year with the cat shield installed. No issues whatsoever. My 2015 is still a year away from requiring a smog check. Both cars have the cat shields riveted...
     
  18. Paladain55

    Paladain55 Junior Member

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    Honestly, the only question I have is do the aftermarket cats work well for these cars? They were always hot garbage when they came with the exhaust kits for mustangs (long tube headers etc...) you might get a year or two and then the internals would collapse and plug (around 10 years ago). If only these cars were as easy to flash as domestic cars then we could just do cat deletes and move on lol.
     
  19. Mendel Leisk

    Mendel Leisk Underfoot

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    That's apparently a bad idea, solder doesn't really bond to steel that well. Permatex Red thread-lock (the "permanent" stuff) on order. I'll hold off till after it's had a drive or two, listen for rattles.

    * Permatex Red thread-lock can be loosened, with heat.
     
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  20. Dagoba

    Dagoba New Member

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    The chain is a pretty good idea, you could always just do a quick tack weld on the last nut/bolt? Though I guess not everyone has a welder laying around...
     
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