I'm thinking about getting a set of sports cats for my 99 C2. I was going to get cargraphic 200 cell sports cats for $2000 but then I found some max speed performance one on ebay for $799. They are 200 cell cats as well. What would you guys do?

 

Should be OK. Max Speed quality is in line with Fabspeed. Cargraphic's price is daylight robbery.

 

I have Maxspeed cat's and headers...no problems so far. I also have the Cargraphic exhaust...here's a video clip of it reving:

http://youtube.com/watch?v=NACN6WdV_KQ

 

do they really add more power as advertiesd?

 

I want to add 200 cel cats to my 2000 996 but have heard horror stories about getting check engine lights...what's the real scoop?

 

From what i understand the REVO stage 2 software for the NA cars can remove the second O2 sensor from the program. Solves the CEL problem...only $50 more then the regular REVO tuning...

 

^^^ Interesting! I want to hear more about that cause if thats the case cat bypass pipes sound like an even better idea!

 

If you stay with 200 cell cats you should be OK with CEL. Another route to take is finding a local shop that offer REVO reflashing and ask them to reprogram the ECU for higher tolerance. Should cost between $50 to $100 service fee.

Regarding HP, there is minimal HP gain. No seat in the pant.

 

I put 100 cell sport cats and new O2 sensors along with mufflers and headers on my car and never had a CEL. I did disconnect the battery while I did it though. I think the ECU uses pre-stored baseline parameters initially, and then updates those as it collects more data as the engine runs.

 

For us in california, it won't pass smog visual with any of these items removed. Maybe the muffler bypass pipes will pass but I am sure the Smogger will question that.

jorge

 

From the research and questions I've asked, if you stick with 200 cell cats you'll be fine. I think it's hit or miss if you go with 100 cell cats. I'm planning to stick with 200 cells. I just want to know if anybody has used max speed cats, besides Fly 996. They are way cheaper than cargraphics but I don't know about quality. I don't have a problem dropping coin on good product but if I can save some money for somthing else, (GIAC flash for example), and get a the same product, why not.

 

Maxspeed are ceramic cats and Cargraphic are steel. Two totally different levels of cats.

Call Mike at Evolution Motors. He can talk for an hour on cats.

 

My mechanic tells me that as far as exhaust mods are concerned, I will get the most hp for the dollar by going to 200 or 100 cell cats on my year 2000 996.....do you guys agree and what do you think the hp increase will be?

 

Awe cats here and yes they do add power.In fact this maybe the only item in the exhaust that adds noticeable power.Be prepared for a louder exhaust note especially if you have aftermarket mufflers.

 

Really? In there discription, maxspees says there cats are made of T304 stainless steel.