Has any one ever had any problems with megan racings exhuast manifold or 02 housing cracking ????Does it matter what brand intercooler i buy if so any suggestions?????? i want 400whp maybe more stock turbo what do i need?? i have turbo back ,cat delete ,intake ,bov, hks 272 , upgraded head gasket, power enterprize timing belt ,arp head studs, U-tec , fuel pump , planning on some 750cc injectors new manifold and 02 housing upgraded front mont with piping kit and possibly an intake manifold.