“I have been using this product for some time. It's probably subjective, but for me, it works very well. I have a VW Golf Mk 7.5 R and since I started using it, the cold start idle is much smoother. Before using this product there were signs of idle stumble when cold. It's apparently a common issue with DI engines. Although my version has both DI and PI, the cold idle is definitely much better. And the fact the new MK 8 Golf R only offers DI made up my mind not to upgrade.
The things you have to do to compensate for these crazy emmission standards?”
