[GhostWhite]

Just got my catless downpipe installed with the stock catback. I wanted to film outside but it's too windy and snowy. My parking garage is the best I can do today. While in gear the spool is a lot louder at wot! That's my favorite part, the spool up and spool down sounds awesome.

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[Tanner]

Did you notice any gains? Have a chance to step on it? Also did you get a CEL?


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[GhostWhite]

Yeah I felt a change in power delivery. The turbo spools up much faster and spools up lower in the rpm range now. I can keep it in 6th at 1500rpm and I can feel the turbo spooling, where as the stock downpipe the car would lug and not spool.

Midrange power feels stronger. It feels more buttery the way the boost comes in.

The car doesn't fall on its face at 5 k anymore. It felt strong all the way to 6k. Way more solid feeling in the upper rpm range.


No cel yet. The downpipe came with a "smart 02" plug so that might hold off a cel. I wouldn't be suprised if the cel comes on in ~20 more miles.



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[Vixenlotus]

How hard was it to take out the old one and put in the new one?

 

[GhostWhite]

How hard was it to take out the old one and put in the new one?

I had a shop install it. it took them two hours total. I usually do it all myself but for $130, i let a professional deal with it.

 

[Tanner]

You'll have to let me know if you get a CEL! I'm excited to get mine Monday. Lol just don't want a CEL. I have the cobb ATR so I should be able to clear it.


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[Colin1337]

How hard was it to take out the old one and put in the new one?

The hardest part is taking the stock one out, that was a bitch.

You'll have to let me know if you get a CEL! I'm excited to get mine Monday. Lol just don't want a CEL. I have the cobb ATR so I should be able to clear it.


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Eventually he will get a CEL, it took me like 30 miles for it to happen.

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[GhostWhite]

You'll have to let me know if you get a CEL! I'm excited to get mine Monday. Lol just don't want a CEL. I have the cobb ATR so I should be able to clear it.


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If a cel pops up, I'll let you guys know! I'd be more surprised if it doesn't come on than if it does come on.


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[GreenFiSter]

With a 02 extender you shouldn't get a cel. Did you other guys get a cel with a 02 extender?
Every car I've used a extender on it worked and didn't throw a code!
Btw sounds great! I need one now lol

 

[MOFiST]

I think others have used these to trick the ecu. http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html

 

[Colin1337]

With a 02 extender you shouldn't get a cel. Did you other guys get a cel with a 02 extender?
Every car I've used a extender on it worked and didn't throw a code!
Btw sounds great! I need one now lol

I'm personally going go do it the right way and get it turned off when I get a custom tune

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[GhostWhite]

I've put about 60 miles on the downpipe and I'm cel free. Seems like the smart o2 actually works


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[COBB]

The rear O2 sensor is used for large fueling corrections. Therefore, not having it in the exhaust stream could affect the tune negatively. We don't recommend using them, a proper tune would be the best fix. Now that Acccesstuner is out, you can do it yourself or find a local Protuner!

Ian

 

[GhostWhite]

Rear o2 is simulating a cat that's not there. You should know it won't effect how the car drives. Focus on updating ots maps would actually be nice. How long has the fiesta been on beta ots map? I'm not spending another $150 for access tuner smh


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[canadian_commerce]

Rear o2 is simulating a cat that's not there. You should know it won't effect how the car drives. Focus on updating ots maps would actually be nice. How long has the fiesta been on beta ots map? I'm not spending another $150 for access tuner smh


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You should really learn how your car works before running your mouth on a public forum.

 

[airjor13]

Rear o2 is simulating a cat that's not there. You should know it won't effect how the car drives. Focus on updating ots maps would actually be nice. How long has the fiesta been on beta ots map? I'm not spending another $150 for access tuner smh


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Yeaaah I think COBB will know what they are talking about...........


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[Sekred]

The rear O2 sensor is used for large fueling corrections. Therefore, not having it in the exhaust stream could affect the tune negatively. We don't recommend using them, a proper tune would be the best fix. Now that Acccesstuner is out, you can do it yourself or find a local Protuner!

Ian

Very good point and handy to know. I was wondering about this myself. "Fooling" sensors is never a good idea imo.

 

[Colin1337]

Very good point and handy to know. I was wondering about this myself. "Fooling" sensors is never a good idea imo.

Agreed, that's why I'm fine with the CEL until I can get it tuned out

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[COBB]

Rear o2 is simulating a cat that's not there. You should know it won't effect how the car drives. Focus on updating ots maps would actually be nice. How long has the fiesta been on beta ots map? I'm not spending another $150 for access tuner smh

One part of the rear O2 sensor's job is read the exhaust gas and determine the efficiency of the cat. Based on input from the sensor, the ECU logic will change the "tune" to adjust AFR for cat efficiency. However, this reading can also compensate for other mechanical issues as the rear sensor can dictate fueling corrections over 20%. If you use an O2 simulator or spacer, the ECU will always see optimal conditions or won't see the full exhaust stream. Therefore, if anything goes wrong or needs to be adjusted for any other reason, the ECU would have no idea because the sensor input would be false.

My personal car will be going on the dyno this week for map improvements! Our current maps are working great, but we usually just keep a "beta" tag on them until we have full Stage 1 (tuning + filter), Stage 2 (tuning, intake, FMIC), and Stage 3 (tuning, intake, FMIC, TBE) maps.

Ian

 

[94Gt5.0]

One part of the rear O2 sensor's job is read the exhaust gas and determine the efficiency of the cat. Based on input from the sensor, the ECU logic will change the "tune" to adjust AFR for cat efficiency. However, this reading can also compensate for other mechanical issues as the rear sensor can dictate fueling corrections over 20%. If you use an O2 simulator or spacer, the ECU will always see optimal conditions or won't see the full exhaust stream. Therefore, if anything goes wrong or needs to be adjusted for any other reason, the ECU would have no idea because the sensor input would be false.My personal car will be going on the dyno this week for map improvements! Our current maps are working great, but we usually just keep a "beta" tag on them until we have full Stage 1 (tuning + filter), Stage 2 (tuning, intake, FMIC), and Stage 3 (tuning, intake, FMIC, TBE) maps.Ian

Little off topic..but is it possible/recommended to run a "stage 3" setup minus the intercooler?