Do you want your smart to have even more power?
No problem, with the performance kit from Steinbauer:
.. all in one kit, which you can easily install yourself and can also be removed without leaving any residue.
In my blog post you will find my installation experience and a performance curve straight from the test bench.If your smart car is from 2012 till 2016 this tuning is made for your smart. Should your smart be from 2017 or newer, I would recommend to search for the tuning made for smart smart ED4.