ranwalk, I just picked up a aem wideband off ebay for only bout 250, so they aint too bad a price to keep check on a/f. Waitin on new programmer to put on my new parts so i can put em all on in one day. Install shouldnt be too bad. I read alot of times on messege boards where guys have plugs go bad on the Ls like urs did and have no prob when they change.