Originally posted by MrFatBooty
You can get a Hondata s100 with boost option for $445. Having fully mapped out fuel and timing definately sounds worth the extra $125 or so above the cost of an AFC. It just came out, which is why the AFC is still so popular. So yeah, you can spend $300 and it'll run "fine" or you can spend $445 and have it fully tuned. And you don't have a stupid-looking AFC cluttering up your interior.
If he's OBD-II, he'd still need an OBD-I ECU and an adapter harness, which would add about $300 to his total cost. S100 with boost would definitely be the better option if he's OBD-I, but if he's OBD-II, then the AFC is ~$445 cheaper.