Dilonv2

Hello there. Can anybody share any links to shops in New York City that provide walnut blasting? 2006 Lexus IS250 180k, P0300 code, changed the spark plugs but still running lower on power and VSC and CEL came right back on. Need to check the code but im sure it's still P0300. But I know that the carbon needs to be cleaned up.

Thank you!