>>28524147 (OP) I don't like running catless, fumes are just too much and for some reason fuel injected cars with no cat stink way worse than carbed ones, maybe maps got all fucked up.
>>28524147 (OP) Are you doing the "O2 sensor defouler" method to move the post-cat sensor away from the stream so it detects fewer emissions and no CEL? It's a classic, I ran like that for ten years.
>>28524333 Since it's tampering with an emissions device it's illegal everywhere in the US as that's Federal law. It's just that no one will check anywhere but California.
>>28524290 You really have to run these spacers at a minimum if you de-cat your shit. A lot of vehicles run rich when they detect something's up with the cats. It helps but it still fucking stinks. Modern vehicles are constantly changing the fuel trims at idle vs a static a air/fuel ratio with a carb.
>>28524361 When I had Suzuki Samurai I installed cat despite not having it from factory. Had softtop and fumes where all getting inside. Cat was not too happy on carb, when bogged down it would start glowing red hot but it did cut fumes significantly, didn't notice any drop in power since it was from much bigger car.
>>28524147 (OP) Fuck you for being a Californian. Go jump off that bridge in GTA, beaner.
Anonymous
7/20/2025, 2:39:59 AM No.28524716
>>28524709 sucking dick doesn't make you gay...oh wait lol lmao faggot
Anonymous
7/20/2025, 4:19:59 AM No.28524822
>>28524290 >for some reason fuel injected cars with no cat stink way worse than carbed ones They run hotter, you're just smelling a lot of the nitrous oxides that aren't getting catalyzed.
>>28524147 (OP) Man you guys are dumb niggas. Those O2 sensors despite mainly being emission control system, it also helps engine to consume less fuel by reducing amounts of non-burned fuel going into exhaust system.
Anonymous
7/20/2025, 10:41:29 PM No.28526058
>>28524188 >>28524845 You don't have to live in CA to deal with CA emissions bullshit. Something like 16 other states follow CA standards and even if you don't live in one, most cars are built to meet CA requirements since it's not worth making different models for different states.
Also plenty of people don't have a choice about living there, yeah half the population are retard faggots who actually went there on purpose but it's really fucking hard to get out if you're actually from there.
Anonymous
7/21/2025, 1:31:15 AM No.28526336
So I have a n52 with carb legal headers and one of them decided to abort the cat material. I cleaned it out and now as expected its running rich. I have a tune so can I just run a spacer to bring it back to normal?
>>28524293 going to have to write this down just in the unlikely case I have to move to a state that does testing. I am sure a low wage muppet is just going to wave it through.
Anonymous
7/21/2025, 3:22:06 AM No.28526498
>>28524147 (OP) >engine runs better and pollutes less NO!! It's Communisum! REEEEEEE!
Anonymous
7/21/2025, 3:25:30 AM No.28526502
>>28526336 >idiot BMW driver blows out the catalyst many such cases
>>28526336 Muh crackle tune. Muh pops and bangs. Just need some of those gay little winglets for your side mirrors and you are the trifecta of BMW gayness
>>28526336 >one of them decided to abort the cat material. I cleaned it out and now as expected its running rich. Thankfully on most cars the secondary (post-cat) O2 sensors don't play any role in AFR or fuel mapping.