Here;s My 2 cents FELLAS haha. Well if he already bought the kit he can only hope and pray its what he paid for and if not he may be able to send it back for a refund but I HIGHLY doubt it since he is purchasing from ebay. If your buying something like a supercharger off ebay its probably not a deal at all...especially if its used its probably broke or on its way out.... only 25% of the people on there are honest about their used parts. Bottomline dont buy superchargers off ebay, especially used ones unless you are 100% sure and confident your getting what you pay for and the guy selling it has a full detailed description of it and pics of EVERY PART you will be gettting. This way if you dont get what you paid for then you can take legal action to get your money back. Now about the T&J mongoose kit....I dont know anything about T&J 's but I hear these guys are doing BIG THANGS and they sound 100% legit. Hell I dont even know them and Im almost ready to say theyre legit. THe mongoose kit is probably the real deal i dunno what the setup is but I trust these guys who have posted on here and in the last month all Ive heard is T&J and the mongoose kit and i think its nicknamed the cobra killer kit. The kit makes power and it good reliable power. Get it!!!!!!!