Ok to start off I really need help on this problem.I recently installed a test pipe for my evo to gain some hp. After i had installed it i was getting the cel of overboosting. I think i was hitting 25psi but I believe the person that had it before had tuned it to hit 23 or 24 so i was going about 1 psi over. To try and fix this problem I installed a mbc on my evo and i took it to the track to test it out. It was running real bad and bogging down after i hit around 21-22psi. So I decided to take it off and put the stock lines back on until i tune the evo for the mbc. Now that i put the stock lines back on my evo starts bogging out really really bad around 15 psi and in my rear view I can see a lot of black smoke and I mean alot, it looks like I have a diesel truck for f*** sake. If any one can help me on this problem i would really appreciate it thanks.

Here is a list of mods that the car currently has

3" invidia down pipe
3" test pipe
tbe
megan turbo manifold
arc induction box

thanks

 

Mine did this when my licp came loose...check all clamps are tight...perform boost leak if possible.

 

Thanks man ill check them out and keep an update out to let you know if that was it.