Get a wideband, no way in hell you are going to tune that thing with an EGT. Would be really easy once you get a wideband. I had Vijay tune my car simply because I couldnt datalog and didnt want to put it on the dyno otherwise I would have done it myself, so I rather would have someone keeping an eye on the wideband that knows what they are doing while I drive. so +1 for him