08siCIVIC

I was looking on Ebay and found down pipe. If I install this on my stock exhaust will I throw check lights?

usdm-honda-r18

Yes it will throw your o2 codes

corndogs

no not if you use a defouler .. you can search and see how to make one.. imo downpipe would be a waste of money tho . you can buy raceheaders very cheap now .. even that one on ebay is only 350 and i have seen good dyno numbers from them before . also the kidracing header is known to be good and cheap. if i where you i would buy the gopower 575 header tho


Ian