Catted Down pipe recommendations?

[Rogues Gambit]

Go Krona. hit me up too, I've got some great deals on 'em ;)

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[BrewCityBOOST]

as the front o2, wide band sensor begins to drift over time, it uses the info from your post cat o2 to effectively calibrate or realign the front wide band.

the rear o2 is very important in these cars due to this. defoulers will work in the short term. tuning is the best way, just be sure you get someone who doesn't just disable it, but rather adjusts the maps appropriately for the new cat as ECM90 HAD MENTIONED.

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[BrewCityBOOST]

Ordered yesterday! :cheers:

awesome! I think it saw that one come through!

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[Mishimoto]

Mishi catted DP bought it during the flash sale gotta say the work&fitment is impressive and its a DP its pretty much the same for everyone.

Thanks ranger! Great to hear it is working out for you.

I bought the catted mishimoto, its trash, set off codes. called mishi on it they said the cat is for looks and smell. such a bullcrap response. would not have bought it knowing that. there are others that don't throw codes.

Sorry to hear you were not pleased with our downpipe. As noted by our team and ECM90, our 200 cell converter is not as efficient as the factory unit in terms of reduced emissions. After installation, we recommend a professional tune to account for this modification. A defouler can be used, however we do recommend tuning if possible. I apologize if this information was not properly communicated prior to your purchase. Without a tune, the power advantages of this modification are not fully realized by your vehicle.

Is this a joke. You realize any aftermarket high flow downpipe will set off codes if you're not running a tune for a highflow cat, even the best of the best. If it doesn't set off codes then it means it's flow is pretty much identical to your oem cat and not benefiting you. I don't know of any highflow cats that don't set off codes, if this is true, they must have built in defoulers, which just set back the o2 and tricks it into thinking the AF is less rich. If this is done your ECU is getting the wrong reading, and imo this is not the best route because if something does mess up, you have a "numb" and incorrect o2 reading so you won't know. If you want defoulers they're just a few bucks, most are just a 90 degree bend that goes into where the o2 sensor would go and then you plug your o2 into the end. Like I said, some of these other downpipes may have these built in if your claiming they don't set off codes or they simply aren't "highflow" and therefore not benefiting you.

These 200 cell highflow Catt are designed to be just on the brink of passing emissions. While your oem cat is designed to surpass that limit and place it in a better emissions bracket for new cars. Mishimoto designed a very good highflow Cat, that should just get you by emissions. However your car is simply not calibrated for it.

Again, doesn't mean mishimoto is shitty, just means they built a downpipe with o2 ports that will give you the true and actual reading. Which in my opinion is better. You can either tune it and have your ECU read the true reading and calibrate it to expect the richer condition therefore it will not throw a code, or buy a few dollar defoulers and basically have your ECU lied to and have it link it's running less rich than it truly is.

End of the day your ECU, like all ECU's is highly sensitive to changes in the AF ratios. There's a o2 sensor right before your cat and one right after the cat. Your ECU is highly sensitive to any changes and is calibrated to look for a very specific reading and compares both the readings for any irregularities. Plain and simple any change from oem cat will result in completely different reading on these o2 sensors.

Its not that mishimoto made a shitty catted downpipe, any true high flow downpipe that has true (non defouler) o2 ports will yield the same result. You must tune your ecu and calibrate it to the new high flow cat so it knows what to expect the o2 to read!

Lastly, mishimoto specifically states for their catted downpipe to run correctly it REQUIRES proper calibrations to your ECU. So before you go around bashing them you should do some research. They build a high quality downpipe.

Thank you ECM!

-John

 

[93tcobra]

I just want to know if you stand by your earlier statement that the cat was primarily for "smell reduction and visual inspection" !

 

[ECM90]

I just want to know if you stand by your earlier statement that the cat was primarily for "smell reduction and visual inspection" !

I think you're taking it out of context. I think what mishimoto was trying to say was it provides almost the same performance benefits as their cattless dp (and still requires a tune), while potentially "helping" you pass through an emissions test, due to what you say they mentioned. They still state that it's for off-road or track use. It's just you have better "chance" to get through emissions and your car doesn't stink.

As far as passing emissions, mishimoto can't say for sure because emission standards not only vary state to state, they can change from county to county, or even vary by city. So to say for sure would mean they would have to gather all the practices and standards used by 100s of tests, it's just not feasible. Some places use sniffers on the tailpipe and when that's comes into play you can say game over. So the few that it may not pass they don't want to guarantee it will. Like the whole state of California you can pretty much guarantee it won't pass because you can't even take off the oem Catt. But where I live, I have gone through with an aftermarket highflow and passed emissions. Therefore, it's very beneficial for me over catless. Also for liability reasons it has to be listed as off road use, federally you're not suppose to touch your oem Catt.

Either way he probably said that since some emission places just visually check to see if you have a cat and see if a code poped on your OBDII, which won't if it's tuned out. So it has the benefit of that over a "catless" downpipe and also you're not gonna be going through the inspection line smelling like straight fumes which would raise a reg flag for further investigating. Plus for personal daily driving catless is simply just smelly.

So he was just listing a couple of pros over their cattless downpipe.

It was a given that the performance gains were there, he was just saying the difference over the catless and not saying the difference over the catted oem one. They clearly state on their website that their high flow catted one gained 65whp with the tune over the stock oem one.

Again, catless or high flow, you need a tune to calibrate.

 

[Busser48]

I think you're taking it out of context. I think what mishimoto was trying to say was it provides almost the same performance benefits as their cattless dp (and still requires a tune), while potentially "helping" you pass through an emissions test, due to what you say they mentioned. They still state that it's for off-road or track use. It's just you have better "chance" to get through emissions and your car doesn't stink.

As far as passing emissions, mishimoto can't say for sure because emission standards not only vary state to state, they can change from county to county, or even vary by city. So to say for sure would mean they would have to gather all the practices and standards used by 100s of tests, it's just not feasible. Some places use sniffers on the tailpipe and when that's comes into play you can say game over. So the few that it may not pass they don't want to guarantee it will. Like the whole state of California you can pretty much guarantee it won't pass because you can't even take off the oem Catt. But where I live, I have gone through with an aftermarket highflow and passed emissions. Therefore, it's very beneficial for me over catless. Also for liability reasons it has to be listed as off road use, federally you're not suppose to touch your oem Catt.

Either way he probably said that since some emission places just visually check to see if you have a cat and see if a code poped on your OBDII, which won't if it's tuned out. So it has the benefit of that over a "catless" downpipe and also you're not gonna be going through the inspection line smelling like straight fumes which would raise a reg flag for further investigating. Plus for personal daily driving catless is simply just smelly.

So he was just listing a couple of pros over their cattless downpipe.

It was a given that the performance gains were there, he was just saying the difference over the catless and not saying the difference over the catted oem one. They clearly state on their website that their high flow catted one gained 65whp with the tune over the stock oem one.

Again, catless or high flow, you need a tune to calibrate.

I haven't seen enough reasons to ever go cattless over catted, seems like nothing but problems

 

[therealdannye]

I haven't seen enough reasons to ever go cattless over catted, seems like nothing but problems

But to play Devil's Advocate - because I am catless - I don't see a reason why you would go catted. It's cheaper to go catless. It honestly smells better to me (after it broke in from the first few drives, it smells like old school muscle). Emissions is only done once every two years here (swapping it only takes an hour). Catless is the highest flowing and loudest for your exhaust setup.

I think going catted is for those who realllly don't want wrench on their cars all but the one time for the first install. Aside from that reason, it just seems a waste of money and caution.

 

[Busser48]

But to play Devil's Advocate - because I am catless - I don't see a reason why you would go catted. It's cheaper to go catless. It honestly smells better to me (after it broke in from the first few drives, it smells like old school muscle). Emissions is only done once every two years here (swapping it only takes an hour). Catless is the highest flowing and loudest for your exhaust setup.

I think going catted is for those who realllly don't want wrench on their cars all but the one time for the first install. Aside from that reason, it just seems a waste of money and caution.

Because of the smell, because performance wise you only get maybe 2hp difference, it has to be tuned for that, which isn't a problem for me, but some. Also the blue and white smoke. I'm not seeing these problems from catted, plus it's drones a lot with after market mufflers on the catted, I can't imagine on the cattless, it has to be absurd imo I'm not going for loud on a 4 banger

 

[Busser48]

And what do u mean a wrench only one time on the cat? What are you saying? You have to constantly take yours on and off?

 

[ECM90]

And what do u mean a wrench only one time on the cat? What are you saying? You have to constantly take yours on and off?

Nah, Danny was just saying here in VA, we just have our emissions every 2 years. So he will have to take off and put back on his oem Catt every two years if he wants it to pass and be registered in this state.

Like he said, not that big of a deal. It's an hour job tops and you only have to deal with it every 2 years. For some that's just too much headache, for others it's a simply task and actually enjoyable to be able to get under the car and turn the wrench so to speak.

 

[Busser48]

Nah, Danny was just saying here in VA, we just have our emissions every 2 years. So he will have to take off and put back on his oem Catt every two years if he wants it to pass and be registered in this state.

Like he said, not that big of a deal. It's an hour job tops and you only have to deal with it every 2 years. For some that's just too much headache, for others it's a simply task and actually enjoyable to be able to get under the car and turn the wrench so to speak.

Ahhhhhh! Don't have that problem in Loisuanna, so that's not why I went catted. I think the smell thing scared me and I talked To a tin of vendors about it. I have the MRT and it was only $399 catted.

 

[therealdannye]

Nah, Danny was just saying here in VA, we just have our emissions every 2 years. So he will have to take off and put back on his oem Catt every two years if he wants it to pass and be registered in this state.

Like he said, not that big of a deal. It's an hour job tops and you only have to deal with it every 2 years. For some that's just too much headache, for others it's a simply task and actually enjoyable to be able to get under the car and turn the wrench so to speak.

Exactly! I love it every time I get under my car. I even just bought an impact gun and right angle drill just to have more fun working on mine and my group's cars. So it's a nil point to say it's headache to swap them once every two years. Like, getting a haircut or buying groceries is more annoying to me because of the frequency.

And again, each of those performance gains is slight but that's what matters to me. The only ONE thing that counts as a con is having to swap for OEM once in a blue moon. The smell is pleasant to me and I think that a lot of old school hot-rodders would agree. This whole "it smells bad" thing is probably more heresay from people than "I've smelled it and I don't like it."

 

[therealdannye]

Because of the smell, because performance wise you only get maybe 2hp difference, it has to be tuned for that, which isn't a problem for me, but some. Also the blue and white smoke. I'm not seeing these problems from catted, plus it's drones a lot with after market mufflers on the catted, I can't imagine on the cattless, it has to be absurd imo I'm not going for loud on a 4 banger

The smoke issue is not because of catless. That has been stated in these forums 1000x over. It's the shitty PCV valve/breather box that Ford cheaped out on. Anyone pushing performance for their cars is automatically going to catch-can it and likely gut that thing anyway.

But no, that smoke issue will happen to those with OEM DP, catted aftermarket, and catless.

 

[Busser48]

Exactly! I love it every time I get under my car. I even just bought an impact gun and right angle drill just to have more fun working on mine and my group's cars. So it's a nil point to say it's headache to swap them once every two years. Like, getting a haircut or buying groceries is more annoying to me because of the frequency.

And again, each of those performance gains is slight but that's what matters to me. The only ONE thing that counts as a con is having to swap for OEM once in a blue moon. The smell is pleasant to me and I think that a lot of old school hot-rodders would agree. This whole "it smells bad" thing is probably more heresay from people than "I've smelled it and I don't like it."

Well from what I hear most is the owners not minding the smell, but their wives and friends, I guess it makes your clothes smell. Again to each his own, and that's great you love taking the same parts on and off, I don't mind but just because isn't a reason good enough for me. Again my views

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