Quote:
Originally Posted by Gas Man
I paid $100 per set for mine. The problem with trying to make your own. Is that there are very strict criteria you have to follow when dealing with O2 sensors. I think its something like you can't soldier, have to use the special connectors, etc. Certainly there isn't $100 worth of parts but consider that you're also paying for the R&D they do. Which is alot. I know one of his 3rd party testers he uses for certification.
Nightrider site is amazing. Scroll thru the first link I put up. He's got tons of info on everything from spark plugs, motor oil, etc. If you have any questions, email him. His name is Steve and he is very helpfull.
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i'll agree that he seems to have put a lot of time and effort into these and picking the right voltage. seems dependant on harley epa facory tuning and guys not wanting to shell for a pcV.