I just ordered it and will install only when I go to the track(I promise). Is their a fix so that it does not throw a cel? I thought I read somewhere awhile back about adding a couple of washers to trick the sensor?

 

I think shiv posted a while back that the MIL eliminator would potentially schew the ECU readings. I just have the local oil lube shop clear the code, I think I'll get myself a scanner so I can do it...

 

Yes. It will throw 0420 which is "CAT inefficiency"

 

Yes, a CEL will be thrown within 150-250 miles
no biggie... just another light on the dash...

shiv

 

When you erase the code and put the cat back on, is it necessary to clean off the O2 sensor to remove residue on it that might cause it to through another 420 code?

 

How hard is it to replace the pipe. Can I do it with a floor jack at my house? How much HP do you think I will gain over the high-flow cat that is in there now? I am taking this car to the track for the first time at the end of the month.

 

I used a set of ramps and it took maybe 10-15 minutes. Make sure you support he exhaust so your don't rip out your o2 sensor...

Should be worth 10/15 hp and maybe 10lbs of weight...