Redlinepowerchip may be a power seller. They may have a good product. I purchased one and it did not work well with my sons vehicle. I did not trash them or the product. All I did was ask for a refund. I did all that "Redline required per their own documentation on their EBay guarantee. I followed all the rules, and sent it back in LESS than 30 days.

They did NOT honor their  guarantee. Neither EBay nor PayPal would help. I guess if you sell enough on EBay to be a power seller you can break the rules. I figured if you put it in WRITING on your REDLINE add on EBAY, then you would be bound to honor what was in writing. I have everything documented and I even provided it to redline for the refund. I have a delivery confirmation from the UNITED STATES POSTAL SERVICE that they indeed received it before the 30 days from purchase date. Still REDLINE did not honor their own guarantee. I have not tried to do anything but get my refund but that didn't stop REDLINE from TRASHING ME in the feedback. I ask for a refund and THEY, REDLINE, trash the CUSTOMER. BEWARE!!

They told me all I had to do to get my refund was to REMOVE my NEGATIVE feedback about them, which I did. After that I have not hear a word nor got my refund from REDLINE. REDLINE is very DISHONEST. I do not care if they are a pwer seller. They are still DISHONEST!!!!!!

Botom line is I followed REDLINE's rules for a refund, but they, REDLINE, did not. I am not trashing REDLINE, they may very well be EBay's best seller. Good for them, but they are still DISHONEST!!