im wondering what the difference is because im going to be upgrading my turbo i have an s4 right now. how much more horsepower can you get with an s5. if you have like say a intake, exhaust, upgraded fuel, safc and a upgraded ecu.

 

The wastegate is a dual hole design to combat boost creep and the compressor wheel is different.

I think it's 10 or 8 fins on the S5.

 

From what I have seen, its basically the same turbo, with a slightly different hot side, negating the need for a twin scroll.

Rat