I'll be installing a 2.5" racing beat downpipe and presilencer, as well as a dynomax catback/mufflers. My intake will be a 3" CAI.

What sort of fuel upgrades will i need?

Thanks
-Ross

 

well depends on the year/model of your car. a walbro fuel pump with the stock 550 injectors is safe up to 8-10 psi (on an S4), assuming you have an FCD

 

walbro 255lph pump and a fcd.

 

already got an fcd in the mail... its a series 5 t2.
Thanks

 

just make sure your boost doesn't go above 10 psi and you should be fine, though with the enlarged S5 wastegate you should be fine

 

Shoot, you could cut it on the stock fuel pump if you wanted. You're already getting the fcd which is all you'll really need. like everyone says, watch for creep and it's all good. Get a nice boost guage if you don't already have one. Piece of cake.

-Kanaida

 

I won't risk it for $100 of savings i'll pick up a fuel pump
Thanks guys!
-Ross