im posting here so i don't get flamed lol

about a month ago i bought my first 7 a 88 gxl

today i bought my second a s5 I'm not sure of the year but it is an s5 gtu

what parts are absolutely not compatible both are running cars

 

maf... I don't think are the same... lower intake manifolds are differant.. Primary fuel rail..gauge clusters.. Hope this helps I have an 88 base model.. I have seen 1 s5 these are things I have read.

 

thanks alot i didnt know the fuel rails were different thats good to know but i basically would like to know what i definately cant use on my s4 from the s5

 

i'm sure the list is more extensive than that as i know the injectors themselves are of different impedance and use different clips. my advice would be to check the FAQ's and Archives in the Gen II forum for more info.

 

front cover, MOP, all harnesses, ecu, clusters, radiators are different

 

Not comparable : ^^ What he said, maf. Most of the engine parts are interchangeable.