[codelinx]

Originally Posted by DKX4///M

I used to work at a local shop, i've been cat-less on just about single car since 2002... I used to even have my inspectors license back when you had to run the car on an inspection dyno to test brakes, and the engine under load...

We could block the DOT camera system and put the exhaust sniffer in another tailpipe, lol...Those were the days...

Since having to plug into the OBD port, really made it tougher, but if ur in with the owner of a shop it's not tough at all to get a sticker...

Even If I didn't know someone, boost activated dumps after cat-less down pipes wouldn't fail me, there is no camera under the car. I'm not sure about the laws today on modified exhausts that still run all factory or street legal emissions equipment, but technically if i had catted down pipes, and the dumps downstream I'd have no CEL and no obvious reason to fail me...

The last paragraph has good info. Thanks for that... I'll see what goes on then. I'm looking to get downpipes on the new x3m I'm about to order.

[r33_RGSport]

Originally Posted by codelinx

Would you consider NYC a hot area? In the summer it gets pretty hot and humid af.

I wouldn't worry as much.
Most guys in Cali doesn't even use Thermal Coating for street cars.

But, hey, Evolution Racewerks is on Black Friday / Cyber Monday deal where the saving can goes to the Thermal Coating cost.

[codelinx]

Originally Posted by r33_RGSport

I wouldn't worry as much.
Most guys in Cali doesn't even use Thermal Coating for street cars.

But, hey, Evolution Racewerks is on Black Friday / Cyber Monday deal where the saving can goes to the Thermal Coating cost.

Ya true. I'm just trying to figure out 2 things. Can I get high flow catted downpipes for a stage 2? How much actual smell will you get with catless downpipes?

That would be great to get something solid. For instance in the TriState sitting in traffic is a problem, so I don't want to be idling and smelling fumes all the time. This is my main concern still.

[r33_RGSport]

Originally Posted by codelinx

Ya true. I'm just trying to figure out 2 things. Can I get high flow catted downpipes for a stage 2? How much actual smell will you get with catless downpipes?

That would be great to get something solid. For instance in the TriState sitting in traffic is a problem, so I don't want to be idling and smelling fumes all the time. This is my main concern still.

X3M have 2 separate cats. Primary and Secondary.
If you remove either primary or secondary, you'll be fine.
But, if you remove both primary and secondary, that's when the smell will be all over.

[floating.spirit]

Originally Posted by r33_RGSport

X3M have 2 separate cats. Primary and Secondary.
If you remove either primary or secondary, you'll be fine.
But, if you remove both primary and secondary, that's when the smell will be all over.

And do u need a tune with catted? Will catted cause a CEL? Tnx...

codelinx sorry to hear about your car, but at least it sounds like you're unhurt. Good luck with insurance and can't wait to see pics of ur future ride.

[emfo]

Anyone have any experience with Euromotive or Miami Performance (MPI) downpipes?

No results when searching... which is unusual since Euromotive seems like a real company.

[r33_RGSport]

Originally Posted by floating.spirit

And do u need a tune with catted? Will catted cause a CEL? Tnx...

codelinx sorry to hear about your car, but at least it sounds like you're unhurt. Good luck with insurance and can't wait to see pics of ur future ride.

If you go catless or race-cat on the primary downpipe, then yes, you'll need a flash tune.
I know that some company said that their catted version won't trigger CEL.
AFAIK, any low count cat cells will trigger CEL eventually.

[codelinx]

Originally Posted by floating.spirit

And do u need a tune with catted? Will catted cause a CEL? Tnx...

codelinx sorry to hear about your car, but at least it sounds like you're unhurt. Good luck with insurance and can't wait to see pics of ur future ride.

thanks!! yea was a little jarring, my corso was in the back, but luckily i can report he X3MC is very safe in a substantial crash.

[codelinx]

Originally Posted by emfo

Anyone have any experience with Euromotive or Miami Performance (MPI) downpipes?

No results when searching... which is unusual since Euromotive seems like a real company.

Nope i have not seen or done any research into this brand. For me the ER DPs look and sound great. You can check them out on r33_RGSport instagram https://www.instagram.com/rgsport_usa he has a whole story dedicated to the X3MC work.

Personally going to add the MSS setup based on some feedback from him + ER DPs + Paul Johnson tune for the new DPs(?Not 100% confirmed i will go with his tune, but seems likely based on research).

[AlexFL]

Originally Posted by codelinx

Personally going to add the MSS setup based on some feedback from him + ER DPs + Paul Johnson tune for the new DPs(?Not 100% confirmed i will go with his tune, but seems likely based on research).

Sounds like a great plan!

[codelinx]

Originally Posted by AlexFL

Sounds like a great plan!

Hey quick side question while you are here. Did you change your wheels/tires, if you so whered you get them from? I am trying to find 20"/21" rims for winter + tires as im out in NYC.

[codelinx]

Just picked ER downpipes + MSS ride system from r33_RGSport . Found a place to do both installs for a good price. I'm going to add these after the break in period. The custom tune will be done by Paul Johnson on the bm3 tuning platform.

And for the winter fall seasons... Probably going to add asanti abl-21 black 20" with Pirelli scorpion Winters(9/10)

Thanks everyone for the info and feedback on everything. Future comments and feedback are welcome.

[r33_RGSport]

Originally Posted by codelinx

Just picked ER downpipes + MSS ride system from rgsports. Found a place to do both installs for a good price. I'm going to add these after the break in period. The custom tune will be done by Paul Johnson on the bm3 tuning platform.

And for the winter fall seasons... Probably going to add asanti abl-21 black 20" with Pirelli scorpion Winters(9/10)

Thanks everyone for the info and feedback on everything. Future comments and feedback are welcome.

Thank you for the shoutout and appreciate the business.

[codelinx]

Originally Posted by r33_RGSport

Thank you for the shoutout and appreciate the business.

r33_RGSport I am wondering if a valve controller is a good idea for the DPs, but i guess i will know after i install them.

[r33_RGSport]

Originally Posted by codelinx

r33_RGSport I am wondering if a valve controller is a good idea for the DPs, but i guess i will know after i install them.

If you keep stock cat-back muffler, you will be fine.

[FSociety]

I did BM3Tuning.com Catless Downpipes and left everything else OEM to see how it would change the tone. I am happy but if I wanted more noise I think Secondary delete would be next but I will leave Resonator and Muffler intact to control the valves.

[spta97]

Originally Posted by DKX4///M

I used to work at a local shop, i've been cat-less on just about single car since 2002... I used to even have my inspectors license back when you had to run the car on an inspection dyno to test brakes, and the engine under load...

We could block the DOT camera system and put the exhaust sniffer in another tailpipe, lol...Those were the days...

Since having to plug into the OBD port, really made it tougher, but if ur in with the owner of a shop it's not tough at all to get a sticker...

Even If I didn't know someone, boost activated dumps after cat-less down pipes wouldn't fail me, there is no camera under the car. I'm not sure about the laws today on modified exhausts that still run all factory or street legal emissions equipment, but technically if i had catted down pipes, and the dumps downstream I'd have no CEL and no obvious reason to fail me...

NY is a CARB compliant state. This means that catalytic converters must meet the CARB requirements. So if you replace a catalytic converter it must be certified CARB which usually translates into more money.

People claim the sniffer test will still pass by deleting one set of cats in a dual cat system (I sure hope they are right).

I am not sure a catless car would pass the sniffer test and I am not sure if a shop would pass it.

As you stated, it boils down to the particular shop. I've had cool ones and a-hole ones before. Apparently the DMV also harasses shops and runs under-cover sting ops (though I do not have any direct evidence of that, just talk from a shop owner).

https://www.discountconverter.com/ca...rter-&News=271

[DKX4///M]

Originally Posted by spta97

NY is a CARB compliant state. This means that catalytic converters must meet the CARB requirements. So if you replace a catalytic converter it must be certified CARB which usually translates into more money.

People claim the sniffer test will still pass by deleting one set of cats in a dual cat system (I sure hope they are right).

I am not sure a catless car would pass the sniffer test and I am not sure if a shop would pass it.

As you stated, it boils down to the particular shop. I've had cool ones and a-hole ones before. Apparently the DMV also harasses shops and runs under-cover sting ops (though I do not have any direct evidence of that, just talk from a shop owner).

https://www.discountconverter.com/ca...rter-&News=271

Yes. But NY no longer uses exhuast sniffer, I was doing inspections and had my ASE inspectors License when shops went from dyno and exhaust sniffer to simply plugging in to OBDII ports and visual inspection.

The stricter requirements are simply built into the the fuel map, meaning that the downstream 02 (02s) must see a larger difference in oxygen levels indicating much less hydrocarbons being exhausted...

Many engines will also have NOX sensors built into the EGR system as well, as ZRecirculating exhaust gases is the primary method to reduce NOX (Atmospheric Nitrogen and Oxygen chemically combined from extreme pressure (heat) bc "ideal" gas law...

Cars would fail emmisions around 1999-2005 (or close) for Hydrocarbons (unburnt fuel or NOX (lean mixture, bad EGR, too high boost, ignition timing advanced.

As for passing with primary cats (but without secondary), the car will pass bc the downstream 02 in before the 2nd cat...So the DME has no idea if the secondary cat is seeing..
If ur in NY a shop i worked at as a teenager until my 20s woukld prob pass u if i talk to him, LMK

[FSociety]

That's correct DKX4///M

Secondary catless triggers no CEL so it would pass inspection anywhere in the USA if primary are stock.

[spta97]

Originally Posted by DKX4///M

Yes. But NY no longer uses exhuast sniffer, I was doing inspections and had my ASE inspectors License when shops went from dyno and exhaust sniffer to simply plugging in to OBDII ports and visual inspection.

The stricter requirements are simply built into the the fuel map, meaning that the downstream 02 (02s) must see a larger difference in oxygen levels indicating much less hydrocarbons being exhausted...

Many engines will also have NOX sensors built into the EGR system as well, as ZRecirculating exhaust gases is the primary method to reduce NOX (Atmospheric Nitrogen and Oxygen chemically combined from extreme pressure (heat) bc "ideal" gas law...

Cars would fail emmisions around 1999-2005 (or close) for Hydrocarbons (unburnt fuel or NOX (lean mixture, bad EGR, too high boost, ignition timing advanced.

As for passing with primary cats (but without secondary), the car will pass bc the downstream 02 in before the 2nd cat...So the DME has no idea if the secondary cat is seeing..
If ur in NY a shop i worked at as a teenager until my 20s woukld prob pass u if i talk to him, LMK

PM Sent

[codelinx]

Originally Posted by DKX4///M

Yes. But NY no longer uses exhuast sniffer, I was doing inspections and had my ASE inspectors License when shops went from dyno and exhaust sniffer to simply plugging in to OBDII ports and visual inspection.

The stricter requirements are simply built into the the fuel map, meaning that the downstream 02 (02s) must see a larger difference in oxygen levels indicating much less hydrocarbons being exhausted...

Many engines will also have NOX sensors built into the EGR system as well, as ZRecirculating exhaust gases is the primary method to reduce NOX (Atmospheric Nitrogen and Oxygen chemically combined from extreme pressure (heat) bc "ideal" gas law...

Cars would fail emmisions around 1999-2005 (or close) for Hydrocarbons (unburnt fuel or NOX (lean mixture, bad EGR, too high boost, ignition timing advanced.

As for passing with primary cats (but without secondary), the car will pass bc the downstream 02 in before the 2nd cat...So the DME has no idea if the secondary cat is seeing..
If ur in NY a shop i worked at as a teenager until my 20s woukld prob pass u if i talk to him, LMK

Just wondering...What would they be checking when connecting to the obdii Port? I'm in NYC so I'll dm you also.

[r33_RGSport]

Originally Posted by FSociety

That's correct DKX4///M

Secondary catless triggers no CEL so it would pass inspection anywhere in the USA if primary are stock.

Does that also apply to some state that do visual inspection?