Ispeedytech has a warehouse in the UK.
Good on you for proving it, fine, I'm highly sceptical when someone bashes them without proof of purchase.
As you bought off ebay you are protected, just raise a case in Paypal and get your money back. Is it definitely turbo siren? Have you got a video? Boost leaks/pipes split sounds like siren too and will also be a reason for no boost.
I almost expected at least one failure since last summer when these were released, and was more surprised up to now there were none. But to be completely sure, make sure you have no boost leaks / split outlet pipes.
Good on you for proving it, fine, I'm highly sceptical when someone bashes them without proof of purchase.
As you bought off ebay you are protected, just raise a case in Paypal and get your money back. Is it definitely turbo siren? Have you got a video? Boost leaks/pipes split sounds like siren too and will also be a reason for no boost.
I almost expected at least one failure since last summer when these were released, and was more surprised up to now there were none. But to be completely sure, make sure you have no boost leaks / split outlet pipes.