I installed a dc race header and after driving it a few miles my check engine light turned on. I went to my local auto parts to check the problem and they said it was saying the two 02 sensors and they cost about 300 each and i checked online and found them for 199... Do I really need new ones or is it because of the race header? Thanks alot.

 

you'll throw a o2 sensor code if you dont use a defouler on race headers.

 

or use kpro

 

but i could drive it around like that right? yeah i can't afford a kpro at the moment...

 

well the wideband will be reading odd numbers and your computer with try to compensate.. and may lean your motor out . kaboom ..

 

so i have to do this...

http://forums.clubrsx.com/showthread.php?t=296791