I've got a intake, mp, dp, cat back, and running 13 or so psi of boost.

You guys think I should do some computer stuff or something??? If seems to be running fine. I think running 7's all the way around on my plugs and the 10mm wires helped.

YEE HAWW..

 

i would consider getting an ECU or at least a boost controller at that point. With that setup you're probably experiencing boost spikes or creep, so something to keep that in check is needed if you like your engine

 

Anytime you run more than 10psi you are risking your engine thats a fact. Also with those mods your car is making great flow which would be fine if you had a progamable ECU. You must understand that the stock ECU opens and closes the waste gate at factory set intervals of rpm/fuel mixture. The stock ECU has no idea when the turbos spool up, or how much boost you are making. Therefor you will get boost spikes around 14psi from the primary/1st turbo cuz it spoos quicker so the wastegate opens late and boost creep from the secondary/#2 turbo cuz you build more psi than the wastegate can bleed off. Do you have a good boost guage? This will tell you everything you need to know about your turbos