catalytic converter

So I'm installing the Doug Thorley headers and having a custom exhaust built to match the 2.25" collectors. It doesn't make sense to me to choke the whole system down with the stock cats. Magnaflow's OEM Grade cats are 2.25" and come with a warranty where I can supposedly get my money back if...

Hello team, My name is Josh and have followed IH8MUD since high school when I got a '90 FJ62. Recently got into a 100 series though, so thanks for being here! I've seen a few threads about threshold error codes with multitudes of suggested fixes, bypasses, and hacks. So I apologize for any...

Hi all, Posting my successful process of clearing my P0430 code on my 2003 LC. awhile back I would get the CE, VSC lights that would stay on for a bit then go away. About 6months ago they came on and stayed on. When I got my oil changed I had my mechanic diagnose it and it was in fact the...

Brand New Lexus GX Transmission & Catalytic Converter Skid Plate for GX460 and 470 (4runner maybe?). I purchased new from Victory 4x4 but never installed. This is the upgraded aluminum version and includes all mounting hardware. Cost is $430 new from Victory. $250 OBO and pickup in...

I have a 100 series Land Cruiser. When I start it up it sounds like its fan is running way louder. I suspected it was the catalytic converter and the mechanic confirmed the left was running hot. He suggested I replace them both (of course) but I was thinking about trying a catalytic cleaner...

Hello Folks, Need your help. My 93 1FZ failed emissions again today with too high NOx levels. Prior to this I’ve replaced the O2 sensors, plugs, wires, cap and rotor. Cleaned the throttle body, replaced the fuel filter, air filter, PCV valve. I’ve been running premium since the last fail a...

Simple help, Does anyone feel a major power loss with their 12HT?. When going up hill, truck loves to bog down and need to shift from D to 3. I’ve replaced turbo, and now thinking of rebuilding transmission. Not sure if the this is normal. Also, does anyone know if the 60 series 12HT has a...

Looking for people who have had problems with the catalytic converters on their FZJ. I have a 97 with 240k on the clock that I’ve owned for over 13 years. A while back it started running very weak which came on fairly quick and for lack of better terms feels like it has asthma or COPD( I’m a...

need a new cat and associated gaskets, any advice? should I just grab a 200 dollar amazon deal and get the exhaust shop to install? or should I pay a bit more and get one with corresponding flanges and dig in? the y pipe is a magna flow in good shape and I replaced the muffler a couple years ago...

Can anyone confirm if this is a Catalytic Converter or a resonator??? I have a 1992 Fj80 3fe my exhaust has definitely been changed as it differs from Oem It goes from exhaust manifold to down pipe (2 seperate pipes) to o2 sensors one on each pipe to a Y pipe right after sensors and go into...

The driver side catalytic converter was stolen on my 1998 Lexus LX 470. Reaching out to the forum group here to ask about whether I can replace the catalytic converter or does the mufflers need to be replaced as well. Also appreciate any comments on oxygen sensor. I live in CA and require a...

I had to replace my cats on my 1997 so I went with the Magna Flow one Cat easy bolt on. Assembly was no issue and running with one Cat isn’t bothering any of the engine management systems. I thought it to be an okay idea! But, now after a few months I have noticed way more heat being produced...

I am pulling all of the smog components off of my 1987 FJ60. I cut this aftermarket cat off and it has the themosensor retrofitted to it. I'm not sure if it works or not. My truck operated like it should. The flange is still present on the thermosensor and my guess is that you could remove it...

Hi, pretty much a complete novice here but I've been looking for some form of catalytic converter theft protection for my 97 landcruiser. I've seen some previous threads on here about protection but no real solutions for the 80 series. I saw somewhere that the Slee belly skid plate covered the...

This cat was on my 60… is it stock? sending pictures of interior as well for condition. Temp sensor got chopped tho

Hi folks, I replaced my y-pipe/cat with a California spec magnaflow. I also swapped my exhaust manifolds and gaskets. The old manifolds seem to be pretty solid, so I figured I would toss them up here. Sold for $50 a piece. The cat is definitely in used conditions (213K on my cruiser) and I had...

I recently bought a 99 lc 100 series from Copart and they cut the cats off and Toyota wants $ 2,500 each and I’m trying to avoid that bill for now. Will I run into any problems driving it without cats. I have no emission standards here. Do I have any options like just put an exhaust on. But...

Hi. I'm new here. After 30 years of eyeballing LC's, I've finally got my hands on one (2003). Unfortunately it has to survive inner-city street parking for the time-being. The state CC resale anti-theft law just went into effect yesterday, so hopefully we'll see a decline in the rampant cat...

After 60,000 miles my thorough OEM rebuild with new SUPERCHARGER had its “new” Magnaflow cats block and self destruct stranding me in Monument Valley Navajo res. Replaced in Flagstaff with straight pipe to continue driving. Im in California CARB state Any suggestions for a better catalytic...

I bought a 2001 100 series a couple of months ago and noticed that the heat shield on my driver side cat is missing while I was looking for the famous " heat shield rattle". The noise is probably from the passenger side heat shield which is barely holding on. I'll probably just buy a hose clamp...