Ok I have some final ?'s on this topic then I will keep my mouth shut! Anyway my wrx has 10,000 miles on it had it nearing a year. If I put the uppipe on what are the chances of it leaking with proper install assumed in this situation? Also what are the negative effects that can happen because of the install of it? And can It hurt my motor to where as It will cost MAJOR bucks to fix? I already know that the instalation of this product will void my waranty I wish it didn't but I guess thats jus achance u take when doin stuff to your car. The pipe of choice will be the perrin does this pipe come with an o2 bung or does it come with the resistor mod I read somewhere that it came with that but I am not to clear on that one.

Thanks for your replies
Sean