If I order and install the catback exhaust system, what do you guys recommend after and/or with it? Is the test pipe, carbino air intake or fuel pump needed immediately?

Thanks,

 

APR (as well as other software) can put in a toggle between chipped and stock that you can switch back and forth from using the cruise control switch. Most dealers can't/won't notice if the car is chipped or not unless they drive it. There are several ways to tell if an ECM is chipped or not but a tech has to be looking for it, most don't even know how to detect it. Unless you blow up your engine (not likely) there is no reason for them to even investigate it. The answer to your question though is, yes, it will void the powertrain warranty if they find it.

 

OMG! I just got rid of the BOV and installed the upgrade "D" valve that you guys suggested and it is huge, insane difference. The car is way quicker in first gear now. I think the turbo spools faster.

 

Now get to that fuel pump, Test pipe, and stage 2+ flash.

 

Catbacks nor Intakes will net you much of a gain on the stock turbo. Stock size is actually pretty decent. Test pipe and a stage 2 flash or add fuel pump and get a stage2+ flash.