I was going to buy the borla kit then use reducers but I couldn't justify the cost. My muffler guy did it for $80.
I did mine a few days ago. It's well worth it.
The exhaust is alot louder accrording to people around me. My now Starbucks friend who always takes my order actually asked if I did the exhaust the day I did the delete.
From what I noticed driving the car everyday, it's more throaty with a smoother flow. It is louder for a warm start and deceleration but not necessarily wot or cold start.
It just sounds alot cleaner.
Here's a video link,
https://www.instagram.com/p/BibNNtGBxuJ/