If you are planning on using a Saab/Blackstone IC on the autobahn you may want to think again. If much of your driving is around town and under 4K rpm, the unit is much better than nothing. Since FI- now somehow reborn after multiple bans including a "permanent" one- and using a different moniker, has never used one he's speaking without actual knowledge. Hypothetical knowledge is useful but real world testing and use trumps what you read in books every time.

edit- now "rebanned".