Totally worth it!
Rick,
Totally worth the money even if you only do it once! I used this on my 2011 N55 135i and it made a huge difference. My intake ports were super dirty even after 35,000 miles. I bought the Bavarian Autosport kit and it worked great. Not hard at all, I did this myself after watching the instructional DIY video on youtube.
I just sold my 135i, so I'm selling this Bavauto media blaster along with a bunch of performance parts. PM me if you're interested.
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