[BR3W CITY]

You don't need a BCM with genIII swaps, but I don't have any idea what motor your looking at/have.

Handheld tuners are a waste of time. The "canned" tunes they come with are ballparks at best, and usually neutered to minimize risk on the tuners end. While it is physically possible to use tuners like those, its not encouraged by most. Handheld tuners were the best option before full scale tuning suite's were readily available.

Their popularity also exists because they come out for more "unusual" vehicles, which don't traditionally have larger followings or specialty tuners. Now that CRM tuning allows for a mix of traditional tuning and handheld flashing, its bridged the gap a bit.

Still for the money, a real tune is worth it IMO.