HKS Intake and RB Cat on Stock S4 Turbo
 

hey guys i have a couple of questions for my FC. Its a 88 TurboII and completely stock. I have a boost gauge, HKS high flow intake and RB Catback and downpipe ready to be put in and i want to know wuh else i should do before and after i put the latter mods in. THe first thing that comes to mind is Porting the Wastegate. Ive read up of couple of write-ups and it seems porting about 3x the original with about a 30-32 mm washer or valve welded on seems to be the concensus. Anyone have any suggestions on wuh i should do?

do you have fuel cut defender? You may want to think about fuel system next I had fuel cut defender and full RB race exhaust w/ intake and I blew the hell out of my engine. I dont know if mine was a boost creep issue or just insufficient fuel but either way better fuel system would have saved it.

so FD injector and 720cc injectors as well as FCD?

correction FD Fuel Pump i mean

So the list of stuff im getting:

HKS SMF Intatke
Racing Beat Dual Catback
Racing Beat Downpipe
Koyo Radiator
FCD
Greddy Type-RS Blow Off Valve
Walbro Fuel Pump
A'PEXi S-AFC
Porting Turbo Wastegate.

Anyone have suggestions on what i need to watch out for and what i need to do afterwards? I believe i also need to get 720cc fuel injectors.