Just had this done by Luther last night. This guy KNOWS HIS STUFF!
My car had stuttering and a twitchy idle, even after injectors and coil packs were replaced by dealer under CPO.
This cleaning has made my car run like new again. Power delivery is so much more linear now!!
Definitely go visit him in his new shop.
Also, hit him up ahead of time as he sometimes stocks Burger's OCC, modified CDV, and RB Turbos' PCV Valve, so you don't need to wait for parts to come in and he can get it all knocked out at once!