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i passed my nct right now thanks i will recommend you to my colleagues..
thank you so much for your help and to your patience if someone wants to get hho installation i will highly recommend hho kit..
Thanks for your prompt response will get back to you as and when I can thanks..
I went from 27MPG to 35 MPG WOW!..
HHO VIP Assistant✔
thank you very much for professional help, I recommend to all,..
Good performance for Corvette C6..