Both are using the same LS1 Edit to tune, and both are very skilled tuners. I went with Nelsons because Allen is local and a standup guy. He offers EXCELENT customer service and I would purchase another tune from him any day of the week. Also Nelson is getting a dyno soon, not sure if westers has that option.
I heard a few good things about westers prob a year, year and a half ago, but havne't heart much(good or bad) about them lately. Ive never heard anyone say anything bad at all about nelson...id go with a nelson.
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