123 Ignition - Tune+

[Steve Barrett]

Looking for feedback on 123 Ignition and best place to purchase one for my '68 280sl.  Considering the Tune+ which has blutooth control and data.

[Pawel66]

I think quite a lot has been said about this ignition system (I have one as well) and it is positive.

You may want to search for "123 curve" for bluetooth programming. e.g.:

https://www.sl113.org/forums/index.php?topic=17128.msg118210#msg118210
https://www.sl113.org/forums/index.php?topic=34915.msg255535#msg255535

Corresponding topics: ballast resistor (usually not used), regular coil or 123 coils both work.

Installation also well described in many threads.

I am not from the US, but US Members buy at 123ignition USA, where you can also get a lot of support.

[clunker]

agreed, the answer at the back of the book is that 123ignitionusa.com is the place to go. pretty universally well received by the many of us who had done the upgrade. slight preference for flexibility of the tune+ bluetooth.

[Bshaunessy]

Ditto what Clunker said 123ignitionusa.com.  I have two installled: 1957 199 SL and 1970:280 SL…both easy installs and flawless ever since.