I'm asking because I found a s4 parts car for 100$(he overreved the motor and blew an apex). I'm about to pick up a 90 GTU(t2 swapped) and it needs the doors and fenders. Will every thing fit exactly? Are the lights on the fender's interchangable as well?

 

yes. but the trim will be different.

 

why look for s4 parts when they are different. if u can tell from the s4 door, it curves on the bottom part and the s5 is more straight, i'm just tell you this before you waste your money

 

ah.....thanks for the info. I thought they looked exactly the same. Thanks

 

and if im correct, the s5 fenders are a tiny bit wider than the s4s ,but by barely.

 

I'm looking at the pictures between my old one and glancing at other people's S5, I can't really tell a difference besides molding. Can anybody confirm this with me or FCforMe?

 

Oh not this lame rumor again.

The S4 and S5 fenders are the same except for some minor mounting hole differences.

They are not wider

 

The S4 and S5 doors are almost exactly the same as well, the only difference being the speaker hole in the bottom of the S5 door.

Now as an interesting bit of trivial, Mazda actually started phasing in the S5 door in mid 88, so it is not unusual for say an 88 GTU to have a drivers door with the S5 lower forward door speaker hole in the sheet metal, but the S4 door panel.

Now perhaps evalutionr you are refering to the door panel, which is also completely interchangeable, but the S5 door panels have a location for that above mentioned lower door speaker hole.