Is there a diffrence between an s4 and a s5 turbo??...I have the chance to get a stock s5 used turbo vs a s4 remanufactured turbo...which one to choose??

 

the search function is your friend . on that note, the s5 will run more boost reliably. The differences? s4 has divided turbine housing, smaller single wastegate, umm... mechanical twin scroll, thats all i got for now but someone will probably come up with more.

 

I have a low mileage S4 Turbo with the waste gate ported over 30mm in diameter. I would be willing to sell it for $200