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this is quote Bryan at berk "Yes, it will fit on all 00-07 S2K's. But on the 06-07's you will most likely get a CEL. The 06-07 DBW cars are VERY finicky when it comes to test pipes."
i have a 2008, in case i throw cel , anyway to fix it ?
I have an MY06. When I first had a test pipe on, the CEL would go on and off every few hundred miles, and that was with the 2 stacked spark plug anti-fouler trick. I guess it's just more sensitive but it did eventually go away. I haven't had it for almost a year now, through very hot and very cold weather.
I think the HKS has a 60mm mid pipe diameter. Any test pipe you get from the board vendors should work fine. Invidia and T1R are the only companies that make 63 and 70mm test pipes I think.
just ordered Berk , 63.5mm, im crossing my fingers lol ,
You'll be fine bro. It'll bolt up no problem. Throwing a CEL might annoy you if it doesn't go away for good. It'll definitely come on even with the O2 sensor pushed away from the direct airflow of the exhaust gases. It's more of whether or not it will stay away for good over time. Mines did but seems like a lot of MY06+ models have the problem of it staying on.
Originally Posted by AssassinJN,Feb 24 2009, 08:26 AM
I thought it was more of just a spacer? As I understood it the issue is that the o2 sensor needs to be moved out of the direct airflow so that it doesn't catch as much of the direct soot/burn off from the engine. If you get a CEL then you screw another extension bung into the first and the o2 sensor into that one so it's even farther out of the way. I could be wrong but I am pretty sure I read that in the UTH forum.
As far as test pipes, they are just a piece of tubing to connect your header to your exhaust, there is very little difference between them so unless you have heard that they are prone to cracking/leaking then go with whatever is cheapest.
An image of how I understand it: test pipe with no fix, text pipe with welded fix, then test pipe with welded and extra fix. The gray cloudy part being the airflow.
Sometimes it isn't sure fire, but yes you are right. It really depends on the air flow, because the air will find a way to get in there.
The problem with the welded fixes is that they are just a spacer, its the same diameter vs. a mechanical one in which you can bore out one spacer and keep another narrow to limit the exhaust flow to the sensor.
Actually when you are making a mechanical o2 simulator, your supposed to take two anti faulers and drill one 1/2'' out and leave the other one alone. I made mine and it worked great. I can't remember though what one you drill out though, Ill have to dig mine out and take a look at it.
