questiong about catted and un catted dp's

[nissamax]

as my next mods im going to be getting an up pipe a and a dp + tune

my question is if i get a catted dp will i still fail emissions?

[TR MS3]

Technically your not supposed to mess with emissions related equipment. But when I was running my race header with HFC, I passed emission every time.

[bolksey85]

Depends where you go. A true by the books place will fail you, with or without a cat because properly operating emissions equipment was removed. If you find a "relaxed" place, you probably won't have any issues with a catted DP. Going catless just raises the stakes even more.

[nissamax]

because i was wondering if im gona fail either way is just worth it to just get a catless one?

[Furious George]

I have had my rex inspected at 3 different places across philly (including a subaru dealer), sometimes with a cat in my APS DP, sometimes not (it is a removable unit), and I never had an issue. Not even a question from anyone.

Emissions in PA require the shop to check emmissions readiness through the OBD port, and a visual inspection of the equipment. My feeling is just that the shop techs either look and don't care about the cat being there, or just don't really look...and I thank them for it.

[DaveSTi]

Never had an issue with inspection with my high-flow catted downpipe.

[malloyboy1]

1996 and newer cars have no visual inspection (they cant fail you just cuz they dont see it) so it doesnt matter if the car has a cat, looks like it has a cat, has a high flow, or like mine is completely catless header back and tuned with cobb ap to clear cel's. as long as it passes the computer obd check and has no cel's and your fine

[bolksey85]

Originally Posted by malloyboy1

1996 and newer cars have no visual inspection (they cant fail you just cuz they dont see it) so it doesnt matter if the car has a cat, looks like it has a cat, has a high flow, or like mine is completely catless header back and tuned with cobb ap to clear cel's. as long as it passes the computer obd check and has no cel's and your fine

Ummm....huh? What do you call putting the car in the air to check the chassis, suspension, tires, brakes? Is that not a visual inspection? Believe me, there are plenty of places that will fail a car for no cat. Any place that doesn't want to possibly lose their emissions license and equipment will fail you. It's 1996 and newer cars that don't get a sniffer test, not a visual.

[Honest_Bob]

"Cats are for lonely people, not cars."

[malloyboy1]

Originally Posted by bolksey85

Ummm....huh? What do you call putting the car in the air to check the chassis, suspension, tires, brakes? Is that not a visual inspection? Believe me, there are plenty of places that will fail a car for no cat. Any place that doesn't want to possibly lose their emissions license and equipment will fail you. It's 1996 and newer cars that don't get a sniffer test, not a visual.

they cant fail you for not seeing a cat on your car is basically what im saying. i didnt mean they dont check anything but they cant fail you for not seeing the cat is what i was told in school/ for my inspetion licence

[Supraru]

Originally Posted by malloyboy1

they cant fail you for not seeing a cat on your car is basically what im saying. i didnt mean they dont check anything but they cant fail you for not seeing the cat is what i was told in school/ for my inspetion licence

That is false. There is visual inspection. A lot of mechanics will just see there is no check engine light on and not car and just run the test. If they saw you weren't running cats and cared they could fail you on the spot. It is also illegal to remove cats unless they fail. If you check under my car though I do not have any. I know I will always pass inspection.

[Supraru]

Originally Posted by nissamax

as my next mods im going to be getting an up pipe a and a dp + tune

my question is if i get a catted dp will i still fail emissions?

In all honestly I think you'll be fine. If you get the catted dp you'll have nothing to worry about. If you get the catless dp whoever tunes your car can turn off the light so you'll be fine, just gotta hope you don't get a stickler. My cousin has a hf catted dp for his sti. I know he's been thinking about going catless. If you want a catted dp I can see how much he'd want for it. It's pretty damn new and I think his sti only has like 20k miles on it.

[bolksey85]

Originally Posted by Supraru

That is false. There is visual inspection. A lot of mechanics will just see there is no check engine light on and not car and just run the test. If they saw you weren't running cats and cared they could fail you on the spot. It is also illegal to remove cats unless they fail. If you check under my car though I do not have any. I know I will always pass inspection.

In today's economy (and the cutthroat world of cars, period), most places won't give a damn because they know they can fail you and you can drive 25 minutes to another place where you'll pass. A lot of it also depends on management of the place. If the higher ups are fairly lenient, you'll be fine but if you get a true, by-the-books kinda place, you're in an emissions failure.

[Supraru]

Originally Posted by bolksey85

In today's economy (and the cutthroat world of cars, period), most places won't give a damn because they know they can fail you and you can drive 25 minutes to another place where you'll pass. A lot of it also depends on management of the place. If the higher ups are fairly lenient, you'll be fine but if you get a true, by-the-books kinda place, you're in an emissions failure.

It's never a higher up call. The higher ups run the books, and problems. They aren't concerned with inspections. It's all on the mechanic. Some are money hungry and think hey this guy isn't running a cat. I can fail him and he'll buy a new dp here and I'll get .6 hours to get me to 10 hours on the day. Lol. It's all about the money.

[bolksey85]

Originally Posted by Supraru

It's never a higher up call. The higher ups run the books, and problems. They aren't concerned with inspections. It's all on the mechanic. Some are money hungry and think hey this guy isn't running a cat. I can fail him and he'll buy a new dp here and I'll get .6 hours to get me to 10 hours on the day. Lol. It's all about the money.

I've been in one or two places where management would willingly chew someone a new ass if they found they passed a car with illegal exhaust mods. Feds find out and not only does that tech lose their emissions license, so does the shop.

[012.5RS]

i rock a perrin catted dp, and have not had a problem. and malloyboy no offense im just curious what school u went to thats giving out such wrong information.

[ndubz]

Catless dp ftw. I have a txs hfc after the dp. Never had issues with emmissions. But I am worried about not having reflectors in my headlights for october. But other than that it's whatever

[06WRBScoob]

Some places as long as there is no CEL and everything is fine when they plug in the OBDII they will pass the car. I have a 4" Turboxs downpipe with a custom highflow cat with bolt in flanges, i just swap between a "race pipe" and a cat. only takes about 20-40mins once a year.

[Vypurr]

Originally Posted by 012.5RS

i rock a perrin catted dp, and have not had a problem. and malloyboy no offense im just curious what school u went to thats giving out such wrong information.

No...The question is where did you hear that new cars need a visual inspection of emissions equipment? They DON'T. Here is a quote taken directly from the PennDot Emissions brochure available at http://www.drivecleanpa.state.pa.us/...e/brochure.pdf

Philadelphia Region
Emissions inspection stations in Bucks, Chester, Delaware,Montgomery and Philadelphia counties will begin offering the On-board Diagnostic (OBD) Inspection & Maintenance (I/M) Check between April and June 2004. Vehicles in these counties are required to have the following emissions inspections completed:
• Most 1996 and newer model-year vehicles will be required to have an OBD I/M Check and a Gas Cap Test.
• Most 1981-1995 model-year cars and 1984-1995 model-year light-duty trucks will continue to be required to have an inspection with an emissions analyzer and a treadmill–like device called a dynamometer, which simulates driving conditions.This inspection also includes a Gas Cap Test and a Visual Anti-Tampering Check of the emissions components.
• Most 1975-1980* model-year cars and 1975-1983* model-year light-duty trucks will continue to be required to have an idle inspection, which measures pollutants while the engine is idling.This inspection also includes a Gas Cap Test and a Visual Anti-Tampering
Check of the emissions components.

SOOOOO, 1996+ cars only require an OBD-II test and a gas cap pressure test. NO Visual Anti-Tampering Check of the emissions components.

[CANNIBALOFDOOM]

as i finally got a job i have been looking more into this myself.. and like this thread everyone says yes and no. My main thing is sound and yess catless are like $200 cheapier.