Hello fellow audiophile :-),

OUtstanding system. I've always enjoyed the Aerial sound, very smooth and full body. I remember first encounter some time in the 90's with the engineer/owner giving personal demo at LA Audio Show. Believe it was the 10T (?); the speakers sound fantastic.

There are Theta Casablanca owners who speak of great synergy between Aerial speakers and Theta processor and from description, the sound is beautiful. I am tempted! :p

1. Yes I have run across a few protocals. They all seem pretty crazy, until you find out the protocal is a legit procedure from the car company itself! And they had designed it that way.
Do you happen to know where this particular protocal come from - how did you come across and decide to use it? Is it known to work for Porsche, is that why you use it?

2. Wow... what happens if you do exceed 3000, does the "readiness" actually disappear? Is it that complicated?

i'm pretty sure it was devised by bmw, but it's fairly standardized and you'll find it also on porsche sites and searches. i was apprehensive about whether it would work, since my turning to it, as i mentioned was a result of failing the obd part. i found it after being told about it, and then searching in here for more info, once i initially failed. all roads led me to the "reset" protocol. i am genuinely curious to know if it was my cats?? or it's the tune. it doesn't make sense, that the tune might be the cause. but who knows for sure.

so yes, rpm above 3k! at any time will require you to start all over, so idle warmup a cpl minutes then take off and just stay around 2500-2750, and you'd be fine. the hardest part for me, was owing to the fact i had/have an intermittent CEL that pops up without a clear code ( p1101 ) which is MAF and/or TB related, so i was on pins and needles getting the codes to "ready" and RE-testing before that dreaded cel would go on again!.. and therein lies the difficulty.. if you have, or have had a CEL, the obd will read it as "recent" and fail you, then you'll have to do the circular drive bit ( they say you need 100 miles min with NO CELS, but that's not accurate ). it will try anyone's patience. if you DO end up having to go through this? ( given you have c'graphic and tune(?).. ) my advice is to go up to mulholland for a few miles at some odd hour of the day, sans traffic. then get back to the smog test before any spirited/normal driving or it all might revert back. as it was, i left with my "pass" :) certificate and got a CEL :rolleyes: within about 10 minutes leaving the test shop. really.

Thanks for the helpful reply. I feel better now that I have your experience and observation stored here on this thread.

I of course am no expert either and am not certain which causes "not ready" alarm, exhaust or tune.
I would add though that the examples that I have seen of "not ready" alarm are very frequently traced back to a tune.
Conversely, the problem that I've seen reporting from exhaust is frequently not of the "not ready" nature, but more of Check Engine Light, from catalytic inefficiency. But these are merely non scientific, anecdotal observations.

My car has been problem free so far with respect to CEL, but the anxiety is there since it could be such a headache to not pass California Smog test. Compulsive me did keep original exhaust and original ECU (my tune is loaded onto a second ECU, my original ECU is stored in a vault :-)), but that would be a last resort.
Thanks to your recommendation I bought an Actron CP9575; I plan to check out my car even though its turn on the California Smog guillotine is not here yet. The thought of not ready light is enough to almost give me chest pain already. :D

It's the tune, most don't have the readiness codes in place, fvd is the only exception to date. You will either have to flash back to stock or replace the stock ecu. Usually, all those maneuvers are meant for 993tt cars, the 997 ecu runs those steps automatically, worth a try.
GL

you describe, in quintessence, the difference between the 996t vs the 997t forums to which i've previously alluded. smart guy that you are, i'd have done the same. warranty is a non issue with two ecu's. but back on point ( the incomparable sturm and drang of a cargraphic note,.. no? :) ) after reflection, i strongly suspect none of this stuff about smog testing will be needed by you.. truth is, i brought my cars particular issue(s) into a place where it may not exist :rolleyes: i'm sure your car will pass with flying colors, and nary a second glance. but if not? you know what to do.

in other news, i blew a maf today by pinning my raised 7200 rev limiter :rolleyes: my solace derives from the knowledge that if my car was a 997t, i'd need to replace two of 'em, rather than one. we take our comfort, where we find it :)

cheers.

to my most recent point. but you missed an entire generation/iteration of the 911, namely the highly sought after, 996 :) though i am not humbled in the presence of a 997t :rolleyes:

I think even the highly desirable 996tt has a higher functioning ecu that negates a lot of those steps.

I have good news for myself: the Actron 9575 is here and I only had a few minutes with it this morning but it looks good: no code, no CEL, O2 sensor appears to be not just ready but also willing :D. Pheeewww - I am a happy camper! Will post picture and more details later.

In the mean time, M3 S3, do you have a follow up to this, for the sake of discussion? Anyone would like to venture a guess why it's a problem here in M3 S3's car? I would guess the ECU tune is causing a problem.

(Repost) Pictures as promised. I finally get around to monitor my car's emission with an OBDII scanner and am *very* happy :p to report that my GIAC tune and Cargraphic Exhaust combination came out squeaky clean: no code, no check engine light, and the Inspection/Maintenance (IM) Monitors, which check the Emission System, appear to be all ready and willing. No dreaded "Not Ready" alarm or code.

For those not familiar, this is the Actron CP9575, an OBDII scanner that is readily available on ebay/amazon. The scanner is updated over the internet easily to the latest software, and after that it's a simple matter of plugging it in into the OBDII port. The function I was paying attention to was the I/M Monitors, as it appears someone has had some problem with Oxygen Sensor Monitor "not ready," which I think might be related to an ECU tune.



https://www.6speedonline.com/forums/...ine=1366641526




https://www.6speedonline.com/forums/...ine=1366641526 <fieldset class="fieldset"><legend>Attached Images</legend> <table border="0" cellpadding="0" cellspacing="3"><tbody><tr><td>https://www.6speedonline.com/forums/...ine=1366927086</td><td>IMG_7007post_zps31d4b5a1.jpg (67.1 KB, 98 views, Original Link)</td> </tr><tr><td>https://www.6speedonline.com/forums/...ine=1366927086</td><td>IMG_7011post_zpsc1bf40ad.jpg (48.1 KB, 96 views, Original Link)</td></tr></tbody></table></fieldset>

Did you ever tried Techart? I have it in my car and the noise is very clean, loud & 0 but 0 drone but (there is always a BUT) it's not TOO loud and I like it loud (I'm coming from Vipers & Corvettes)

I'm getting EP1 this week but I'm not sure yet if I'm going to like it better than TA

I had fabspeed version 2 & 911tune but they didn't work out for me.

I hope you like EP1, but isn't is supposed to be a relatively quiet exhaust?

I have awe gen 1 and love it. Very deep and unusual sound, brings out the character of the flat 6 IMO.

Right, the ep1 is definitely going to be quieter. Leo probably needs to go cat less.

Well to me is the end of the road if I don't have great feelings for it, I will just keep the TA

Leo, nothing is the end of the road, you just have not talked to the right person :p. EP is an excellent exhaust well liked by many, but it is not the one if loud and aggressive is what you are looking for.
First, IMHO you should try to post on this forum to see if other people on the forum have the following exhausts for you to listen too. Don't buy any more exhaust and don't trust web postings until you have listened to a few *in person*.

*If* American V8/V10 sound is what you are after, then it is an absolute must that you try to find a GMG exhaust to listen too. This exhaust will give you a good ear cleaning and is quite satisfying, assuming you like the loundness. It is too loud for me and probably too loud for a daily driver but might be the perfect choice for you.
One notch below GMG with respect to loudness and aggression, but has been around a long time with a cult following :p is of course my exhaust, Cargraphic. Both Cargraphic and GMG have what I would call a "full bodied" sound with "big" low frequency purr and rumbling at low throttle. The shift to screaming mechanical sound occurs at WOT.
Multiple other choices as well. FVD is another interesting one. A lot of the American exhausts "I haven't listened too, but I am sure some will give you the loudness you want.
The key is to listen first, in person. Just post on this forum to find owners.

BTW, during auditioning, the opening loud sound when you first turn on the engine doesn't count :-). What's important is you in the car driving, with windows up (how I/we drive 90% of the time) and windows down (the other 10%). If the sound in these 2 situations are not loud and aggressive enough for you, then it's not the right exhaust.
The exhaust sound when you are INSIDE the car as driver is much more important than when you are OUTSIDE as bystander. Outside sound always sounds better but as a driver, obviously you won't hear it. Outside sound's main usage is for parking lot demo's and impressive web sound clips; fun, but not that relevant to the driving experience.