COBB AccessTUNER Pro for 2008 EVO X (merge)
Great... now that the Stage 2 maps are available... does anyone know if Cobb will be making a Stage 2 for the most popular intakes, as decided in the Poll thread? Also, does anyone know if/when Cobb will be releasing a Full TBE? I could go with a different brand... i.e. Buschur? But don't want to go down the road of getting a different brand, and then find out that I'd have been better off with a Cobb (since it would be supported - like my AEM instead of Cobb SF)
Just to confirm, I would need:
- Downpipe
- High Flow Cat
- Mid Pipe
- Muffler
What are the chances that this will cause the car to start throwing codes? I do want the extra power, but, don't want any of the BS... Please comment! Thanks!
Just to confirm, I would need:
- Downpipe
- High Flow Cat
- Mid Pipe
- Muffler
What are the chances that this will cause the car to start throwing codes? I do want the extra power, but, don't want any of the BS... Please comment! Thanks!
We also will be releasing a full TBE with a high-flow cat. The target release date is end of Febuary, but again **NOT** guaranteeing that date. For the exhaust we are at the mercy of production.
Keep in mind I'm give these dates to try and be helpful, please don't hang me with them
Currently the Stage II does not stop the P0420 code (catalyst inefficiency) from throwing, so it will cause a CEL. The P0420 code should not be confused with the P1235 or P1238 which have a debilitating effect on the performance of the car. The P0420 code will not cause issues with performance, only causes the CEL to illuminate. I'm currently working on taking care of the P0420 code which should only be a map update once it's ready.
Thanks,
Rob
Thanks,
Currently the Stage II does not stop the P0420 code (catalyst inefficiency) from throwing, so it will cause a CEL. The P0420 code should not be confused with the P1235 or P1238 which have a debilitating effect on the performance of the car. The P0420 code will not cause issues with performance, only causes the CEL to illuminate. I'm currently working on taking care of the P0420 code which should only be a map update once it's ready.
Thanks,
Rob
Thanks,
Rob
I think I read on another thread that you decided to go with the Quad tips? So, if there is going to be a Full COBB TBE with the AWESOME look of the Quad tips that will work with your STG II, without throwing codes by even early March, I'll wait for that... besides, it's still Winter up here... I'll work on being more patient...

As always, thanks for the update!
Rob,
how would stg II work with the stock exhaust? I want to go with this but can't do an exhaust anytime soon.
Also, what is the difference with the ACN maps, are they for elevation or just for crappy gas? I am in Colorado ~5300 feet.
how would stg II work with the stock exhaust? I want to go with this but can't do an exhaust anytime soon.
Also, what is the difference with the ACN maps, are they for elevation or just for crappy gas? I am in Colorado ~5300 feet.
Does this mean that the ECU would learn that the exhaust is all of the sudden more efficient, and therefore, once you clear this type of code, you wouldn't see it again? CEL's are a huge pet-peeve of mine...
+1 at the most all I want to do to my exhaust is a test pipe. I would like the added boost of the stage 2 map but with a mostly stock exhaust and panel filter.
I just hope it is nothing... It's snowing over here so I've been driving on Econo map taking it easy... but once it warms up i will try it again I hope I don't throw anymore codes....
No that would not 100% be the case. If the same conditions exists again, the same thing will most likely happen again.
If you remove the pill how will that react if I started to use other maps like back to Stage1 or econo??? Will there be a messed up reading??? I find it difficult if everytime you want to put it into Econo or other stage mode you would have to insert the pill on and off again...
ACN stands for "Arizona, California, and Nevada". These states are notorious for having a poor quality of 91 octane. We adjust the tune accordingly for the fuel being used. For Colorado the standard 91 octane tune should work great. The initial tunes were done here in Salt Lake City, ~5300'.
Thanks,
Rob
Robb,
Will we have problems if we take out the restrictor pill to run the stage 2 map but then when going to the dealer loading a stock map back on running without the restrictor pill?
Will we have problems if we take out the restrictor pill to run the stage 2 map but then when going to the dealer loading a stock map back on running without the restrictor pill?
Something to keep in mind, that extra boost may not give you any power. Tuning is about a balance of parameters that gives the motor what it wants to run most efficiently. As you have most likely seen with the over boost or under boost codes, you cannot just up one parameter without playing with others.
In several cases stock cats can be a bit of a back up, but this does not seem to be the case with the Evo X. It looks to be the cat-back which is the restriction in the exhaust.
Thanks,


