ok. I finally got with my mech. He told me that he put a S5 engine in my S4 GXL, rebuilt and streetported turboII with turbo tranny.
My question is this. Will I face the boost creep issues with this engine?
I have a racingbeat downpipe, Test pipe, No cat, and a Tanabe Medallion exhaust.
The ECU is S4. GXL
Now, what issues will I face with this? he claims not a damn thing lol. I love puertorican mech. splicing and hacking into wires and stuff lol.

On a last thred i was told to port the wastegate if it was a S4, do i still need to di it on a S5?
Thanks fellas

 

You could be safe and just port the wastegate. However, the S5 wastegates are larger and can handle a little more flow. I think the only way to know for sure is to hook up a boost gauge and take it for a rip to see if the boost starts creeping.

 

lol ok man, if I blow up my engine, ima be looking 4ya lol. Thats great info, I really dont want my mech to port it, since he will keep my car another 2 weeks to do that lmao. he keep my car for about 6weeks already. My nikes are about to walk by themselves. so, if the car starts to creep, should I just stop the car and idle it till it goes down?? I live only 15 min from work, so I dont mind walking again, i just want my car home