I've used both $8D (1227730 MAP) and the $12P (1227165 Aussie $12P MAP). I have a LOVE / HATE of both systems. For an engine I'm going to the track with, I favor $12P,! For an engine making up to about 1.0 HP per cubic inch and requires being a daily driver I favor $8D.

Individual Tuning Results will vary!

$12P will get to the checkered flag first.

$8D is a nice ride around town with some awesome Saturday Night street fun.

$8D is less money.

dave w