baseballd2
Member
- :
- mazdaspeed6
Does the catted downpipe from cpe provide much less performance than the cattless. I don't want a cel and Im not too sure about preforming the diode trick.
Catted Downpipe
- Thread starter baseballd2
- Start date
baseballd2
Member
- :
- mazdaspeed6
do you think it would be bad if I put in the cpe downpipe and later installed the catback magnaflow exhaust. Its 3'' into 2.5 right? or will that be ok. I dont like the cpe 1 pipe exhaust
www.cp-e.com
Member
baseballd2 said:
Actually the dyno results on our website were from an otherwise stock car with the addition of our catted downpipe. But like vert said, the difference in power between catted and off-road will be on the order of 5hp.
Our downpipe is best paired with our catback so you have a 3" to 3" exhaust system, but since the dyno on our webpage was performed with a stock catback (ie. around 2.4" diameter) you can expect about the same gains from the Magnaflow catback (which is 2.5"). So the downpipe will work just fine with the Magnaflow catback
Jordan
mustangman
Member
- :
- 2006 MS6
Hey CPE, I asked this on another post, but correct me if I'm wrong. A catless downpipe will still pass emissions because the Speed6 has two cats. I dealt with Park Mazda in Wooster (They sell all your stuff and I as impressed with them) and in talking with them they were of the same mind.
Is this right???
Is this right???
mustangman said:
This sounds about right. The first cat in your Down-Pipe is the "pre-cat or warm up cat". This is in place so that untill the Main Cat ( which is located beneath the car) warms up so your car isnt poluting the air.
In order for the cats to work properly, they need to be at a higher temperature. The Downpipe cat get hot very quick since its right at the beginning of the exhaust. This buys time for the main cat to warm up to operating temperature. The main cat takes longer becasue the exhaust gas temperatures in its location are cooler.
So I would assume the trick would be to make sure your car completely warmed up and that main cat is completely warmed up BEFORE you go test for emessions. This way it is at operating temperature for the emissions test.
Afroman said:
prewarmign for emissions dosnt always work.
My smog tech / neighbor her in cali were warming and hondas and some other cars. When the cats were to warm they failed certain tests. They cooled them down or did them asap and cars were passing . They didnt expect that result.
But i knwo in cali if you buy a new car you have 5-6 years now till first emissions. If you are an awd car like the 6 ands need a test only. But they dont have an awd dyno, they can still test you. Did that with my awd explorer. BUt also if you go test, dont do it nt he middle of the day on a really warm day, that brings the knocks up also and can fail you at times. Even if everyhtig is in working order.
www.cp-e.com
Member
mustangman said:
Unfortunately our catless downpipe will replace both cats so it will not pass emissions. However, some states only require a OBD-II scan to search for emissions related CEL's. We're coming out with an oxygen sensor simulator which will eliminate any emissions related CELs. So as long as the tech doesn't do a visual inspection for a cat, one could hypothetically pass the emissions test with just an oxygen sensor eliminator.
Our oxygen sensor eliminator is called a Smart O2 Sim. It's smart because its programmable for use on ANY car. We should have these available in the very near future.
But if you're looking to pass your states emissions test, I'd only recommend using the catted downpipe.
Jordan
A catless DP will only pass emissions if you have a CEL supressor and your state only does an OBD-II scan. If your state has a sniffer test then a catted downpipe should work if it's a quality product. If your state does a visual inspection you are pretty much screwed. If your state does more than one you have to prepare yourself for the stricter test. Order of difficulty passing (easiest to hardest):OBD-II scan, sniffer, visual.
baseballd2
Member
- :
- mazdaspeed6
so does anyone know New Yorks emission's tests?
mustangman
Member
- :
- 2006 MS6
Jordan, Afroman, and everyone else, thank you for the quick responces.
I just want to clarify. Monday I am getting your turbo back DP w/cat and exhaust installed. I live in Ohio and I just searched for quite a bit looking for "what is tested"... I can't find what exactly they do. But, if I buy the turbo back system (DP w/cat and exhaust) I will pass emissions. Correct?
Sorry to be so conservative, but after spending this kind of money, I want to be sure I'll be ok for a few years. Thank you again everyone.
A quick side note, CPE, you would make me VERY happy if you also sold a plastic part that smoothed out the exhaust port that isn't being used with your system. Or help me find a new bumper for my MS6... (lol)
Jim
I just want to clarify. Monday I am getting your turbo back DP w/cat and exhaust installed. I live in Ohio and I just searched for quite a bit looking for "what is tested"... I can't find what exactly they do. But, if I buy the turbo back system (DP w/cat and exhaust) I will pass emissions. Correct?
Sorry to be so conservative, but after spending this kind of money, I want to be sure I'll be ok for a few years. Thank you again everyone.
A quick side note, CPE, you would make me VERY happy if you also sold a plastic part that smoothed out the exhaust port that isn't being used with your system. Or help me find a new bumper for my MS6... (lol)
Jim
www.cp-e.com
Member
jdub260 said:Do we have an approx. $$ amount for the "Smart O2 Sim"? Also will this be cheaper with a DP and Smart O2 Sim package??
Inquiring minds want to know.
Unfotrunately we don't have that information yet. We actually have the prototype board built, but we need to run some trials. As soon as we have pricing and availability information I'll be sure to put it on the forums for everyone. It should be a pretty trick product though. We tried using mechanical CEL eliminators on our SPEED6 downpipes, but they were never really consistent. So we think this'll be an elegant and reliable solution.
Jordan
www.cp-e.com
Member
mustangman said:
Hey Jim (headbang)
The catted turboback will pass the Ohio state emissions test if they just do an OBD-II scan. But if I were you I'd give your local testing station a call and ask what their testing procedure is. If they run your car on a treadmill, then we can't guarantee that the turboback will pass because the pollutant tolerance varies by state. Most states just require a OBD-II scan, which simply checks for emissions related codes, and there won't be any if you buy one of our catted downpipes. I totally understand your hesitation and can't blame you. Play it safe and give the testing station a call to make sure. If you have any questions about their testing procedure, don't hesitate to PM me or give us a call for some advice.
Regarding your exhaust port question, are you referring to the exhaust outlet in the rear bumper? If so I'm sorry to say that we don't have anything that will cover up the second outlet. But I think you'll be surprised when the turboback is installed. Our catback's exhaust tip is recessed into the exhaust outlet. And because there is a chrome ring aroud both outlets, it looks like the chrome rings are the exhaust tips from the rear. You actually have to look pretty close to see that there's only one exhaust. If you want, we have a SPEED6 with our catback installed in the shop, and I'll be happy to take some pictures for you. Let me know...
Jordan
