Exactly. Unless you are probably running 850+ whp, the factory cats should hold up for quite awhile and do fine. Big hp monsters will go through any cats quickly.
Running No Cats in Ma
- Thread starter 04ssssvt
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some of the bigger tuners will tell you they suggest removing cats once in the 600’s+
We all heard of someone who made 1kwhp through a stock exhaust and we have heard of someone melting their car down or blowing an engine from clogged cats as well.
Take all this with a grain of salt.
Personally I would never do hot WOT pulls in high gear on the highway with any decent HP and cats
Im just curious, was their a noticable difference with the high-flow cat(in your case, the green cats) vs the factory. Just trying to see if the extra power will be worth the potential hassle. thanks for the input.
I've talked to many "Experts" and I keep hearing two sides to the story. Exactly why I'm asking on here. Looks like some people know inspectors that are getting it done for them. I'm leaning towards a high flow cat at this point or just leave the factory cats to avoid the hassle.
Thats the second part of my question. It sounds like the factory cats on the car are already hi flow. thanks for the input man.
15 min from Boston. My tuner suggested possibly needing 02 defoulers but wasn’t certain if I would need them or not.
I expect the car to be close to 700whp for now. I was thinking the cats should hold up fine at this Power level.
You have no worries then OP. Drive her hard!
Hmmmmm,..........that's weird??? I could have sworn that I read on their website that they do not turn the 02 sensors off??
FL is one of those tough emissions states.
My guy, whom is also a personal friend, has to take photos of the car. Front/back/side and underneath as well as take a 'selfie" to show the car is running properly. He showed me the whole checklist that he has to go through for every inspection.
If it were me, I would just go with a high flow cat and be done with it. Good luck!
what their website says is to keep them out of trouble with EPA.
you serious someone has to take pics with the car? That is unreal! Thank god I don’t live there!
02 non foulers on the rear sensors... no cats and no lights on dash and tuned for the last 15 yrs on my old girl and she passes no problems in mass ...also no front plate because I won’t drill into a mint bumper
Knock on wood no problems for 19 yrs
Knock on wood no problems for 19 yrs
See! Proof it’s not all that hard to get by. People been doing this shit for decades. This isn’t anything new.
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The high flow cats threw codes.
Factory cats weren't an option, have Kooks LT's, they wouldn't bolt up.
The green cats allowed the 02's to be turned back on. All this was on my 2011.
When my 14 was modded, went with LT's & " green " cats right away, no issues.
There are those that have a catted pipe for inspections & just change it out. The one thing that can't be hidden is the smell a no cat car has.
Unreal some states still do this of a stringent inspection, we dont live in the 70s anylonger.
I thought the idea of low emission vehicles, let's just say year 2010 and newer(compared to 70s/80s) was to emit lower pollution so these inspections would not have to be done.?
Well if people are taking the low emissions vehicles and ripping the cats out, they're no longer low emissions. I live in ma and decided it's not worth the chance of being hassled for running catless. That being said, defoulers on the o2s or MIL eliminators. I ran those back in the day on my contour with gutted precats.
Yup.
They have to take a photo of the front/rear of the car. Underneath the car and the doorjamb with the VIN. The speedometer as well. It's a serious over reach. Too much.
I did my basic bolt on mods about 5 months ago, and with the catless lethal h pipe, first thing VMP did was turn off the rear O2 sensors.
But but but,, their website says they don’t! Lol.
People are funny sometimes. They just don’t get it. Hahahaha
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