We would be happy to help you with this, and our pricing is lower than ordering directly from the ADD W1 website. (Even with the sale pricing)
Here are the most popular options for the vehicle in order from more popular to least popular based on our sales of the catch cans:
1)
(NEW) ADD W1 V3.3 - Baffled Dual Inlet Oil Catch Can Kit - K5 Optima Store (Dual inlet can to collect oil from both sides of the engine, includes mounting bracket)
2)
(NEW) ADD W1 V3 Baffled Oil Catch Cans - K5 Optima Store (Single inlet and outlet, optional mounting bracket available)
3)
Mishimoto Baffled Oil Catch Can - K5 Optima Store (Higher quality, twice the capacity of the ADD W1 Catch Cans)
4)
Mishimoto Catch Can - Base Version Universal - K5 Optima Store (More universal type, very similar to the ADD W1, but non-baffled)
We realize it can be tricky trying to figure out the best option for you. The ADD V3.3 is vehicle specific, meaning it will come with all of the hoses, brackets, and fittings you need to install directly onto 2015 Optima 2.0T without any of the guess work trying to figure out what size bracket, hoses, and fittings are needed.
Just let us know if you have any questions about any of these, as we do carry all of them in stock.