Ok just asking. I dont think they are but maybe...are they the say...NA AFM and TII AFM? also how much do they go for ...used.

Thanks
James

 

lol, you sure you searched? I just made this exact same thread regaurding S5's, so i'm sure its the same for S4's, check down a bit.

 

yeah i found em for the S5s but who knows what type of changes they did between the year(well besides icemark )

 

Well you'd figure the turbo and non would have different fuel needs like S5's, so my guess is that they would have made it different.

 

The S4 afm's are a rectangular flapper door type. The S5 afm is a cone door type. On each model year the afm's between the turbo's and n/a's while physically identical, are calibrated differently with different spring rates. They will physically interchange between turbo and nonturbo but the cars will not run properly although they will still run. They each have different part numbers since they are different units.

 

Thanks RG...just needed that