Brad '95 C4

For those who are curious, my Dach X pipe with 200 cell sport cats just passed CA smog with flying colors:

HC
Maximum allowed@15mph (55 ppm) and 25mph (39 ppm).

Mine measured 16 ppm@15mph and 13 ppm@25mph.

CO
Max allowed .50% and .48%.
Mine measured 0.00% and 0.00%.

NO
Max allowed 437 ppm@15mph and 724 ppm@25mph.

Mine measured 45 ppm and 210 ppm respectively.

I have 7000 miles and almost 2 years with the Dach and highly recommend this mod!

Stealth 993

I just passed with mine as well, clean as a whistle!

David in LA

Need these for Turbos (hint, hint again Chris!!)

brucec59

I just wanna get mine!!! Hurry up, Chris!!!

gonzilla

Thanks for posting this!!! I've always wondered if they would have a problem with exhaust mods. Did they do a "visual inspection"?

993inNC

Brad nice to see you, long time no hear. How are ya? Glad all went well, thanks for the plug.


Bruce, you're up soon my friend, just sit tight

micele@yahoo.com

Just an FYI on 96'-98' 993s and aftermarket CATs .....

I recently (Nov 2008) tried getting my 96' 993 C2 to pass the smog at the Ca. Referee station in S.J. Ca.
I just purchsed a FabSpeed Sport Cat, very nice sound and great performance. The problem was; it did not have a part number for the Referee station to reference against the Ca. emissions standard OB2 Ca. Compliance. When Fabspeed sent me a letter signed by them stating it was OB2 compliant, I brought that to the board (referee), but apparently, Ca. has just reinstated the CARB law in Nov 2008, stating that all aftermarket CATs must have the CARB number stamped on the CAT in order to be approved for street use in CA. Thought I would share that, if anyone need to go through the Ca. Referee station for smog sign off. They do visually check the exhaust system!!

VMXWinn

I have HJS 100cell sport cats and they passed smog with flying colors. Car was well within spec so I don't think the tech looked much at them.

Brad '95 C4

Why did you have to go to a referee station and not just a test only site? I think the Dach cats have a #.

micele@yahoo.com

will the dach sport cat pass the CARB inspection visual and system at the Ca. referee station??

Brad '95 C4

Usually you only need to go to a "test only" station, so for most people the DACH cat would not seem to an issue.

What circumstances require you to go to referree station?

race911

It's usually never a problem to pass on the numbers. With a car in proper working order, anyway. It's all about the visual. And Smog Check Dude usually has a hard time understanding where the engine is located in a 911.

Now why would someone be going to the referee? A waiver for readiness codes. And once you enter that Alice In Wonderland world, it's best to have your car as stock as possible!

David in LA

IIRC they cats have a CARB sticker

993inNC

here's what they have, if any doubt, bring this to your ref. station for clarification

David in LA

Chris - OT but I'm still waiting for you to make some Dach Cats for 993TT which replace the mufflers...ideally something like these Fabspeeds that let you use the factory tips!